HomeMy WebLinkAbout20200309.tiff COLORADO GEOLOGICAL SURVEY
1801 19th Street
Golden , Colorado 8401 rivORAIA
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Karen Berry
March 1 3 2018
State Geologist
Ryder Reddick Location :
Weld County Department of Planning Services SW1/4 Section 35 ,
1555 N. 17t Ave . T1N, R67W, 6th P.M.
Greeley, CO 80631 40. 003 8, - 104 . 8647
Subject: PUDIK18-0001 Todd Creek Village North
Weld County , CO ; CGS Unique No. E- 18-Q037
Dear Weld County Planning:
Colorado Geological Survey has reviewed the PUDIC 18-0001 S-0001 referral, I understand the applicant
proposes 174 detached and 150 attached residential units, and 3 .7 acres of mixed use development on
approximately 80 acres located at 10025 Weld County Road 2 , northeast of Weld County Roads 21 and
2 .
The available referral documents include a Geologic Hazards and Mineral Extraction Evaluation (Earth
Engineering Consultants [EEC] , January 29, 2010). CGS agrees with EEC that the site does not contain
an economic mineral resource whose extraction would be precluded by the proposed development, nor is
it exposed to geologic hazards that would preclude the proposed residential and mixed uses and density.
CGS therefore has no objection to approval of the sketch plan as proposed. However:
Expansive and compressible soils and expansive bedrock. According to available geologic mapping, the
site is underlain by wind-deposited sandy and clayey silt and silty fine sand. These fine-grained soils tend to
be loose and hydrocompactive, meaning they can lose strength, settle, compress, or collapse under loading
andlor wetting. Alternatively, clay minerals and clayey pockets within the surficial soils may swell and
shrink in response to changes in water content. Potentially highly expansive claystones and shales of the
Dawson formation are present at unknown depth beneath the surficial soils . If claystone layers capable of
producing high swell pressures are present within a few feet of foundation bearing depths, they can cause
significant structural damage if not properly characterized and mitigated. The Weld County Soil Survey
describes the site soils as somewhat limited in suitability for construction of dwellings due to shrink-swell .
EEC ' s Geologic Hazards and Mineral Extraction Evaluation report refers (page 3) to a Geotechnical
Exploration (October 25, 2007), but this report was not included with the available referral documents .
CGS would like to review EEC 's geotechnical report if available.
If EEC ' s geotechnical report is not available, a preliminary geotechnical investigation is recommended to
determine depths to groundwater and bedrock, and to characterize soil and bedrock engineering properties
such as swell/consolidation potential, strength and allowable bearing pressures . This information is needed
to determine the site ' s suitability for full-depth basements, if planned, and to determine the need for, depth,
and lateral extent of overexcavation or other stabilization measures . If overexcavation is determined to be
necessary, it should be performed on a block- or filing-wide basis, prior to utility and road construction.
WE- 18-0037`1 Todd. Creek Village North PUDIC 8-0001
2:29 PM, 03/ 13/2018
Ryder Reddick
March 13, 2018
Page 2 of
Thank you for the opportunity to review and comment on this project, If you have questions or require
additional review, please call me at (303) 384-2643, or e-mail carlson@mines.edu.
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Jill 'arlson, CR&.
Engineering Geologist
WE-18-0037.1 Todd Creek Village North PUDKI S.O[O1
2:29 PM, 0311312018
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January 29, 2010
EARTH ENGINEERING
CONSULTANTS , INC .
ALE Equinox TCVN, LLC
do Todd Creek Metro District
10450 East 159th Court
Brighton, Colorado 80602
Attn : Mr. Roger G. Holiard
Re: Geologic Hazards and Mineral Extraction Evaluation
Todd Creek Village North
Weld County, Colorado
EEC Project No. 1102005
Mr. Hollard:
Earth Engineering Consultants, Inc. (EEC) personnel have completed the geologic
hazards and mineral extraction evaluation requested for the referenced project. That
evaluation was completed by reviewing readily available data concerning soil and
groundwater conditions at the site, principally through review of United States
Geological Survey rJ )/ olorado Geological Survey (CGS) and United States
Department of Agriculture Soil Conservation Service (SCS) published information. A
listing of the references reviewed as a part of the geologic hazard study is included with
this report.
Todd Creek Village North includes approximately 1000 acres of development area
located in the Southwest and Northeast Quarters of Section 26, the East Half and
Northwest Quarter of Section 27 and the west half of Section 35 , Township 1 North,
Range 67 West of the 6th Prime Meridian, Weld County, Colorado. It is our
understanding that the 1000 acre site is to be divided into residential lots with the
potential for retail/commercial lots. The purpose of this evaluation is to identify potential
geologic hazards and potential mineral resources which may conflict with the
development intended. The conclusions and recommendations presented in this report
are based upon the acquired field data, review of the available literature, and previous
experience with similar geologic conditions in this area.
4396 GREENFIELD DRIVE
WINDSOR , COLORADO 80550
(970 ) 545 - 3908 FAX ( 970 ) 663 -0282
Earth Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 2
Slopes on the site are generally gentle, although steeper slopes are noted within the
northwest and northeast portion of the property associated with Big Dry Creek and the
South Platte River, respectively. Brantner Ditch runs west to east on the north portion of
Sections 26 and 27 and turns south in the East Half of Section 26. Brighton Ditch is
located along the east boundary of Section 26.
The property currently is primarily agricultural farm land. A feedlot is centrally located
within the parcel and several single family residential units are located within the
proposed development parcel . Approximately 26 oil/gas wells, producing or abandoned,
are located within the proposed Todd Creek Village North development.
RESEARCH
Soil/Geologic Review
The site geology presented in this report is based upon the acquired field data, review of
the available literature and maps, and previous experience with similar geologic
conditions in this area. The locations of geologic features are approximate and should be
considered accurate only to the degree implied by the methods used to make those
measurements .
The project site lies in the Colorado Piedmont Section of the Great Plains Physiographic
Province. The sediments which compose the Colorado Piedmont were formed when
uplift of the present day Rocky Mountains in Eocene-Late Cretaceous times (30-70
million years ago) produced a large increase of stream sediments resulting in deposition
of sediments on the flanks next to the mountain belt and outlying areas. The Colorado
Piedmont is an elongated trough in the Great Plains, adjacent to the Front Range of the
Southern Rockies. The Colorado Piedmont was formed when uplift of the area in
Miocene times (5 -20 million years ago) produced an increase of stream erosion resulting
in scouring next to the foothills and outlying areas. The Piedmont is bordered by the
southern Rockies to the west, Great Plains escarpment to the northeast, and Palmer
Divide to the south.
Earth Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 3
Structurally, the site lies within the Denver Basin, a thick accumulation of Paleozoic and
Mesozoic Era sediments involved with down-warping in the basin area and uplift of the
adjacent highlands. Small anticlinal folds occur adjacent to the Front Range , It is our
understanding that faulting has not taken place in the recent historic past in this area,
The site was visually inspected on January 27, 2010. A Geotechnical Exploration
conducted by our firm (# 1072123 , dated October 25, 2007) was used to provide
additional subsurface information. EEC will use this Geologic Hazard and Mineral
Extraction Report to "target" boring locations for our planned preliminary geotechnical
exploration report for Todd Creek Village North.
The U. SGeological Survey describes the bedrock underlying the site consisting of the
Denver (Paleocene and Upper Cretaceous) and Arapaho (Upper Cretaceous) Formation
(TKda). The Denver and Arapaho Formation generally consists of claystone and
siltstone with interbedded sandstone containing several coal seams. The bedrock is
covered by alluvial, mixed alluvial and eolian deposits.
The United States Department of Agriculture Soil ConservationSurvey(1) map describes
the surficial soils mainly as clays and fine sands. The surficial soils are generally
classified as exhibiting low to moderate erosion potentials with non-swelling to moderate
shrink/swell potential. In general, the near surface soils at this site appear to range from
low to moderate plasticity clay and clayey sand soils with varying amounts of silt. Areas
of non-cohesive to low cohesive materials exist on the parcel and may be susceptible to
erosion. Aquolls and Aquepts Soils which are flooded, wetland type soil are identified
within the central portion of Section 35 . This area likely would have shallow
groundwater and/or natural spring(s) and may require particular attention prior to
development. A geotechnical investigation should be conducted at each proposed
building site to identify if these conditions exist.
Earth Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 4
POTENTIAL GEOLOGIC HAZARDS AND RECOMMENDATIONS
Coal Mines
A review of the Geologic Hazard Area Map of Potential Ground Subsidence Areas in
Weld County, Colorado2 , Colorado Front Range Inactive Coal Mine Data And
Subsidence Information Weld County(3), and the Map Showing The Extent Of Mining,
Locations of Mine Shafts, Adits, Air Shafts, And Bedrock Faults, And The Thickness Of
Overburden Above Abandoned Coal Mines In The Boulder-Weld Coal Field, Boulder,
Weld, And Adams Counties, Colorado(4) indicate past coal mining has not occurred on
this parcel. The nearest mine shaft, Hillside, is located approximately 4000 feet
northwest of the intersection of Weld County Roads 6 and 19, and outside of the property
boundary for the proposed Todd Creek Village North development. No information on
the Hillside mine is readily available through the Colorado Geologic Survey (CGS)
including the exact location, extent of mining or dates of operation.
As we understand, based on our conversations with the CGS, coal mining in the Boulder-
Weld Coal Field, had occurred within the coal beds of the Upper Cretaceous Laramie
Formation and the coal seams were typically identified from exposures at the surface
(outcropping) where the mining would follow the deposit. Mining depths have been
reported to range from the surface to depths greater than 450 feet below surface
elevations in the Boulder-Weld Coal Field. Previous coal mining has also occurred in the
Denver And Arapaho Formation several miles southwest of the site in what is named the
Scranton District.
Bedrock exposed within the walls of the Big Dry Creek and within borings we conducted
previously on this property appears to be Paleocene and Upper Cretaceous Denver
Formation. Water well data within the Northwest Quarter of the Northwest Quarter of
Section 27, T 1 ITT, R67W indicate a dark shale (probable Denver Formation) to a depth of
166 feet, then grey rock (probable Laramie Formation) and shale with the first occurrence
of coal at 396 feet and the last encounter at 550 feet below ground elevation with a total
drill depth of 735 feet. No voids or loss of pressure are recorded on the drilling logs
submitted to the Colorado Division of Water Resources which would indicate mine
workings had been encountered. Other selected water well drilling logs were reviewed
Earth Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 5
for wells installed within this 1000 acre parcel and coal seams were identified on all the
reviewed data at depths ranging from 310 feet to 692 feet below surface elevations.
Based on the reviewed data it appears the coal resources underlying this parcel have not
been mined and the risk of subsidence due to previous mining activity is low.
Coal resources likely underlie the proposed Todd Creek Village North development area.
A Summary of the Tertiary Coal Resources of the Denver Basin(5) published by the
USGS in 1999 summarizes "These resources probably will not be used in power plants
for the next 20-30 years because of the relative abundance of coal of better quality in
nearby areas (Kirkham and Lad wig, 1980). Those areas include western Colorado and
northeastern Wyoming. The present and future importance of the Denver Basin with
regard to energy production is more closely linked to oil and gas resources than coal
(Higley and others, 1995)."
oil and Gas Potential
A review of the Colorado Oil and Gas Conservation Commission (COGCC) database (a
Division of the Colorado Department of Natural Resources) and. Oil and Gas Fields Map
of Colorado: Colorado Geological Survey Map Series 26. Maps of oil and gas well
locations created by the COGCC indicate twenty six (26) wells (producing and
abandoned) on the site. The northern, western and southern portions of this property are
underlain by the Spindle Field and the central and southeastern portion of the property is
underlain by the Wattenberg Field.
Based on the available information, it appears the wells generally extend to the "J- ands"
on the order of 8000 feet below site grades. Production appears to be both crude oil and
natural gas. Well spacing orders for this area are shown on the above referenced database
as undefined in this area. However, the current well density is approximately one well
per 40 acres which is fairly typical in producing fields for this area,
Flood Plain
The Federal Emergency Management Agency Flood Insurance Map (panel
0800100025H) for Adams County and Unincorporated Areas, Colorado indicates the site
is not located within any known flood area. However, a flood plain is delineated on the
Earth. Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 6
topographic survey within the Northwest Quarter of the Northwest Quarter of Section 35 ,
T 1 N, R67W along the Big Dry Creek drainage way.
Radiation
A review of the available information from the Colorado Geologic Survey (a Division of
the Colorado Department of Natural Resources) indicates that deposits of uranium oxide
had been recovered from within an isolated area of a coal mine within the Laramie
Formation in Boulder County. Additionally, deposits of uranium oxide are also known to
exist within the Fox Hills Sandstone, although known deposits are considerably north of
this site. Both the Fox Hills Sandstone and Laramie Formation are located at depths
below this parcel. At this time we anticipate no radiation hazards based on our
understanding of these deposits and past land usage. However, we recommend that
preliminary radon mitigation measures be incorporated in the construction of the homes
at the site and that homes be tested for radon after a normal living routine has been
established.
Uranium oxide can be extracted either by traditional removal (mining) methods or by a
non-intrusive, in-situ mining operation. If future energy/military demand warrant
collection of uranium and if uranium is present in sufficient quantities at depths
underlying this site; surface development would not impede a non-intrusive extraction
method of an economic resource.
Sandi Gravel and Quarry Aggregate Resource
The Colorado Geological Survey (CGS) describes this site as being is in a non-resource
area for sand, gravel and quarry aggregate. One small area, approximately 10 acres, of
Upland Deposits is noted within the Northeast Quarter of Section 26 . It appears that at
least a portion of this deposit is not within the property boundary of this site. Based on
the small area of the deposit and the close proximity to South Platte River deposits, we
feel that there are no economically extractable sand, gravel or quarry aggregate resources
on the property. Most, or all, of the known gravel pits in this area are located in the
floodplain and stream-terrace deposits of the South Platte River to the east.
Earth Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 7
cONCLUSI0N
Based on the conditions observed and researched, there are no apparent significant
geologic hazards on the property. Geotechnical a.l investigations are recommended for each
building site to identify shrinswell potential in the soils and/or bedrock strata. Pre-
mitigation radon control methods, such as sub-slab piping, as well as radon tests are
recommended. Based on these conditions and our observations, it is our opinion that the
development intended is compatible with the geologic conditions at the site.
The data presented herein were collected to help determine the feasibility of this project.
Professional judgments on design alternatives and criteria are presented in this report.
These are based on evaluation of technical information gathered, partly on our
understanding of the characteristics of the development proposed, and partly on our
experience with geologic conditions in the area. We do not guarantee the performance of
the project in any respect, only that our geologic study and judgments rendered meet the
standard ofcare of our profession.
We appreciate the opportunity to be of service to you on this project. If you have any
questions or require additional information, please do not hesitate to contact us.
Very truly yours,
Earth rth Engineering Consultants, Inc.
Reviewed by:
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Gary J. Higgins, P. G. Lester L. Litton, P.E.
Senior Engineering Geologist Principal Engineer
JH.ILLL 'dla
Earth Engineering Consultants, Inc.
EEC Project No. 1102005
January 29, 2010
Page 8
REFERENCES
1 . Soil Survey Staff, Natural Resources Conservation Service, United States
Department Of Agriculture. Web Soil Survey. Available at
http://websoilsurvey.nres.usda.gov/ accessed [January 26, 2010]
2. The Weld County Department of Planning Services, May 10, 1978,
Geologic Hazard Area Map Of Potential Ground Subsidence Areas In
Weld County, Colorado : Colorado Geological Survey in cooperation with
Amuedo And Ivey - Geological Consulting Engineers .
3 . Turne , J.E. and Murray-Williams, L, 1983 , Colorado Front Rang_
Inactive Coal Mine Data And Subsidence Inforrnation. Weld Count
Colorado : Colorado Geological Survey, Plate 12 of 12 .
4. Roberts, S .I ., Hynes, IL. and Woodward, C.L., 2001 , 1'Maps Showing The
Extent Of Mining, Locations Of Mine Shafts. Adits4 Air Shads, And
Bedrock Faults, And Thickness Of Overburden Above Abandoned Coal.
Mines In The Boulder-Weld Coal Fields, Boulder, Weld And Adams
Counties, Colorado, U. . . . , Geologic Investigation Series, Map 1-2735
5 . Nichols, D.J., 1999, Summary Of Tertiary Coal Resources Of The Denver
Basin, Colorado : U. S . Geological Survey Professional Paper 1625 -A,
Chapter SD Series Map 1-955-G.
6 . Colorado Oil And Gas Conservation Commission, COGCC GIS Online.
Available at http://cogcc. state.co .usi accessed [January 25 , 2010]
7 . Schwochow, S .D. , Shroba, R.R. and Wicklein, P.C. , 1974, Atlas Of Sand,
Gravel And Quarry Aggregate Resources Colorado Front Range Counties:
Colorado Geological Survey, Special Publication 5-B .
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Snit Map-Weld County, Colorado, Southern Part
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Todd Creek Village North
Weld Count, Colorado
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roject # : 1102005 Date: January 2010
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Earth Engineeringonsult .nts, Inc .
Soil Map—Weld County, Colorado, Southern Part Todd Creek Ville ;.i1e North
Map Unit Legend
Weld County, Colorado, Southern Part (C0618)
Map Unit Symbol Map Unit Name: Acres in AN Percent of A01
1 t Altvan loam, 0 to 1. percent slopes 5.1 0 .5%
4 Aquolls and Aquepts , flooded 22.0 `7 . 1 %
22 Dacono clay loam, 1 to 3 percent 0.8 0. 1 %
slopes
26 Haverson loam, 1 to 3 percent slopes 20.1 � 1 .9%
33 Kim loam, 3 to 5 percent slopes 2.9 0. 3 %
40 Nurin loam , 1 to 3 percent slopes 209 .6 20.0%
41 Nunn clay loam} 0 to 1 percent 14 .4 1 .4% 1
slopes 1
42 Nunn clay loam, 1 to 3 percent I 5.4 0 .5%
slopes
46 Olney fine sandy loam , 0 to 1 percent 36 .8 3 .5%
slopes
47 Olney fine sandy loam , 1 to 3 percent 65. 5 6 .2°4o
slopes
48 Olney fine sandy loam , 3 to 5 percent 39.5 3.8%
slopes
52 Otero sandy loam, 3 to 5 percent X4.1 0.4%
slopes
56 Ren ohill clay loam, 0 to 3 percent 25 .3 2 .4%
slopes
57 Renohill clay loamy 3 to 9 percent 29.0 2 .8%
slopes
61 Tassel fine sandy loam, 5 to 20 7.6 0.7%
percent slopes
78 Weld loam , 0 to 1 percent slopes 30.7 2.9%
79 Weld loam , 1 to 3 percent slopes 262,4 25 .0%
82 Wiley-Colby complex, 1 to 3 percent 229 .8 21 .9%
slopes
83 Wiley-Colby complex€, 3 to 5 percent 37.6 3.6%
slopes
Totals for Area of Interest 1 1 ,048.8 ?0.0%
Natural Resources Web Soil Survey 1 /26/2010
Conservation Service National Cooperative Soil Survey Page 3 of 3
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GEOLOGIC MAP OF THE BOULDER-FORT COLLIN - tGREELEY AREA, COLORADO
By
I Roger B. Colton
1978
Todd CreekVillage North
Weld County, Colorado
EEC Project : 1102005 Date, January2010
North
le a 4500'
Earth Engineering Consuitants , In
•
1RWWCi OF MAP ONITS
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irrti in Ilrwi, doss 3 Hi allow I4na1 ka4. Ths .In-.r Lb 71r(re; M-M n• I Nil l t ''Mr. IIMErt rt iNg•--C�, yi . ,..ii,t M$• v�'p :.rk+ tin Linn* ,i hi *1;r r,► If F 44; 1141 c4 s s,•3+.', rraittwry i9� skate tivc id 1 'n •�r►4.tis u
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t11 ti 'Min kitra HOLOCIM TO =McrWiwJ wi. t ?'p k 1d Om.tiaso cif ifilirv.$! Meant fl !a>�iitf c r ►i+#a/ tau.ram *hair ftuan►'t.t I Z►a:: *.. 4ilseclwotr
Vandh s. 'rtl+ttrte t xiak' tYni 4 t. nil Rr..1:- R't S,nakr ithe 15r-nis•-•
. t: . Lttr '�s 4rtttt h in 9 m Oak � 4'
S rarbfu aJJI t'. ti.0 tibillat nar!ntr. larch cull Vt rtat,.wta and .taiirsan len .01 I faC IMS clAfitir441411.(41/O1 °i' CA NJ I •,.,r: pampa Fr'tivsi.Mv r.4-4.h•
tlk , co1A.i,f +9 aiposIR 14O1OOAE 1O FK.I',1I)''i h Rilitirq ira last Ni .liter+. #ac:1/29.s }i trtntr ltle tlllrt'-s ettt, tl „air. t.riadlnn rtla,.,a nnica,-_," --- brtfin crek-oribrar t., regular elm(r,fr0ant a 4fre At"s. itst .do-
I •'aitlttlar tail lea 1101 deratatxl lay, Vale* alias; alt Vill Wei* tier 4 .:11Vt :.turd ad ilanC!)1,pfilr,, Mil+` I.aslan %m7 4a,Y.i t1fidenthor n a iad :i. ell en aadnaand L:.i••f.ta,n.-*3 the
r IS &t'. aat p.aati aaltcwMI a..V%1 stilts,
Cate ai n! tr*At•tirr.; ,:+`tuff OakumOakumc4 vane, a rr :ltakitn in a'. r*t;sors. :@L'9•.Ia-larardi .illiNtIl.sq�: y Il1W Rea! ' RA.lipr tcandtI t trt.ae h a War Sent faSigh 1 to b'r s3 far BrtsM Citf& CCtc tlt�iit l't .
7 g na 4onnaly trot r I. titant fe air 4'r cii ii 'fri h staff-tnl Iima-a 'Moir tea T1itw►a vll 4Rtr1 'b�1•n Mtn.C Ia t c ,ri
! L'St it lilt ft M` ' i'1SliIII : • I ' &41 T (I LIM %'1'rl. ,41,' � �t tit t'."4' Ts1 -,-1 va�l `t Ir*s+tu t'`t 3ttF1 �r I ,, t _ j 44 prat.
`� rt,liFrvi I !Cr 1 b,-1-"..," , ' t Will* 13tas! rdtrwrtrrr-41*ailsnr ardi ..I..kr: •aibr1•rn r spat 491 du Ihtate_ ttlt'i Ita t 1 CAN" 9t shit! Vent ga f' rant*1 De _ Milian t7113.?L Sri,. ►D6.w[7�Ffl''h G'6CF��'i,y�fACLk'�i '�• 1.. �`'
`t:�ll i.A#�EIf"+�-r'�c. r'l 'K�'+�, tit ts�e�sa t•_ 1 sl'' I`t<11"1,1,
reitalnt. 1-'r ' , ' a "ttt:r„:._. -4'1'�le•ni. a;l tandkikant ;it`. 'sill ideti anti Map urn re-lrlr+ T.-tre `,at4hicile. .ii;rfilrtle,PS• :tea 'I melt nest trade t_ neivisab&t todiet composed a t earls: rue* °fixity, a aru111',inr I
l��,,ftdri ;a• .i' . ' '.a I •• ii . -, !i . ': -- eisiQ at,t,.,y t the am tom :$ rea Akita y ita 1 ,4 I 't'1 tfl'fi unhit taw hoe r. a l hat'ublerhlk
Maki
ii .?r Cs ri.t 'ie't•'=.�Y•a +Vitt 't s-!. atr*•l •taat.1ut�tm' •aSr 4el4I t-� I: 1 F townie#* at nttttit w, ; 's in daih LittttY s rt ion riyq•. .1 in de k e.t�,:[ e!i I 1 " i1° ' $ .. • 11�3'tilAl4T3-a r5t!UIEilE1r1'ti 71P Ug1t g! ffi: 'iT1att[ dlu6fr td[fitCalk3 tf!
Sins'idY:I. r^ "i ' .. *VS,bui r:igr.►=6y.' No Infanta 4.5 1"t tat sai,insrir -„-::',utiw4 *op a i tin' iria191r 4.444;408 ',1 i t1Eulte '4,1,4`r*► tar. - tgaaxilln! G.ra.leadter+atxl_ -alltat. ate! tfrArad+rrn;f 'll,rniblinlit or t?>MrzaW'
'Net lots, :a : "- '' •-' 1'a raft* tirryeathita c4 ossittabn olit Avail ari4 14-.),""1 I '1 it I, tiff V'eM' l e% Mil In 6q'/ti e n efts tau in ices r7't t' ,9t a ta' it bolt %%Sri ter nom.%arn wz}ta9.l.at4 ttrja iiVOlie'ft t•!'11P*il'fft4Thell
tHaut•rteki i w.I • v .. a'ahW^ -t. Atfi lf'tiligi .At4 '1. 1M'Etii'iwi. it igld 1,n1'�Ib�iale fr�•_.�
- '4M1T"711
I -•Ar 7 ; I tan a l.i t +r-trithrf—•1',''ml•.t t. 4 M I trw Mack Nita., ttriiSi Chatting
' IAM1 •`d.IDE 4 T5 lI K)UXt , iO fJ J f f Ei►I"a._!a . t X11, 1 Y Sre r Wither. ant C'.rn'tsvoi I a►wChrt t :Iin,<, r 'Tyne fan M Mate. % TASETI IICTARY RtSILA trski-CAmogya. Yck. mhset lal le etc,k4ns.41,D
-- flirt *wilt** tat grotty;' him* Amur to *'sariwr• Slav S natt'rirl I.tI at t!`t''rf'ti^ baS hbr` ai-kirnkin•* shalt T icki'i•a`M•:,titifi t 50I1 at re+r-' bat walk ,*d iitruerv-APplivr., Mint•ciar r1 ads FAalitetz tt-.I
r151jOdl(t1i tar lietm clay and tall kL•rit 13 raft rat law-Om +I<StrartPw . 6.-xtr a• .:+.nlivIl a.lkrte tatfira'utheiY .'4.srwr1,. .t.a*a.tl•t►r_ arrltltti'mb _
'Ort1$it%at. IT
ISSI, CPc rit,'Pirt l* CrArTill :q_1101.0 It.timie-vk el.•tJf rtta-rit .r mat 141•510•121r rat he pronlea
t °.
`� Mint •CltelYa t'rl.l�lntttrad d'f.'!''Ir'.�fi It�S7EilbP.-�+�! 6 ,a �,5, hum a,ram.tl,. tit . I . '-fI �t lt�:atldet- r^� ,. Den lit. (Atli. r� $�'+1 rt ,"r:�1i rime*.
I---- A'. a .sitrelE`iti itfi�lr � ti4int'!ttR owrus maw i=lei lifittti'ic6 tOv+A•;≤ i :d:rli-Ft. •I dve' tnifitriz•r... I 14 42tgany..3lc'klepitiilt. stud nl' ran trtt.rrt►.lrSrtd wwh ariit'm matter i!oi
'tmik,:a t kiwi 3-6. w em , a ii adx. n•t i Own 14'a=.• nir.tntsan 1"a Ilah inner Cr.:isarlta' tut iCtit• S Imeit1i'd is i s Pww :rt$ izs aadir cn t'ia1` 94'
Irsnut rift alr4tit Ss Sari linakw Rem' okeete !NAL 'Iltvri01 in 1'ti0 *A %1.,1&% ill tikbefe Mtart.•-t- 1a•••a.Itbti otte te)isNirlrtrrititu. Ni�.yr J,4s till tttiwiaZairtt n'!r!> rr
; yrr: s 1stT'} ;Asia; Eer esl•'avr~ t't`..r it 111'•. Intel tariff %a kin awl 70 us in tit tax i r i
' 1`l 1'a t t t _. _ an • tot 'rowel fiche a —O-egrssinur'4 1 nr• >-•apIw fls* t4 .I:I•a i lift OA
I-f „.,.til'74tr'dl.�a' Ar L1..i4t'ii aT'NIT1h'9td trt.A6i.1417-dfJ++4. a1:a'5' Olit.fr► -'5.3 u,#ifyl 3i..�I ,N�n,yyite ... bi hit 4 +>; nargiur 1 -nab:y•itanzta dart Nth 414t tlaw
,t•r_i tin.; .1...n-aa.�lttlf ' fl '++ea c rth lain.. Fllw-r ,+t.:) ePe inilltbrac• tw S1 i IF. I',y'a I !Ifni!'-It 4'Ir+Ftt,ret. 'Cri c,i IyaIli, PI.K ithr.4411 t•_rimlit•^t•R e. M iret iP • 14.-?n tafft',ra ea wit n artrat€id'1atilfla: t•`J'ad
._intd anal WS 'atn3s7attat, 54k['t.100 star arkfirda.•as. b !DO.e. hand trill.. ktlet-ta a* t‘riatianki thin taw ,d1*' ant tw.rrsina+t I,A„tet Utah t'tir. moist _
oink*k* Artt'I 4- Imo'' t rfra itiaci,i &1 aktA.tt II PP ttlatme naafi Ah,adie..11 n data '' Ph.rtilryn biasht beim . I*+ti ,rgete•bri Pit, Jrtlaaste•7 1Qri iiiiinaiani ;A
4.r.-argt atat'st !*' Firintl kw* ay.i .(. 410 A. Ike tigetrle CMr•,rr1'ti 14W 4iad Mal . -- . trairtdrib<blt.r
uYstt M>r4fia_'lri srit•'s Ia1!•I.t'ii . lttttKsen ?Uric in aair.re fie Bc 1•txa IIIII CAW 1E r % i : ; tattFN-IO1tsi I 1 I,T1$ :F &'vt$ t'GRAM'FtO5.
Wyman is 3 'r at tick Af. re the Sa'teh {4$ 4• Rpm ( wt,... ' a.] Si ALE-7m•i ll tla.. sieve t401 lstl u at 3.:sii rr wit 165: .at ti d. !I '�ti_
x _ AAVI•1>IKDl]i E' ai4W,i:rAMI5WA'^Z b tlamlt• go5; its Nat w,+s'i hi i>,ra?
Lizitii.i4 ft3 I•elt-ra. Er all na is ,.t 34 in rack hi..iwtm r.w ,- 1 1 Hi Vii`£#v *him 1151: in nn em' ( 7y,fbinei sod 1(k.14 hra 1r45 ticrlRisadl f cw-'4 i�dfetrorkir..S 04 Sltddrnef 4a air. and 84$41k1E*1 t. 19c;Ar
kinlirea laws iS Lob,t1 cS dtwx-r gamy
IOlt ! 1.,01 it*S AL1-Lr rt1 •:s1 41ALL GMT tali. tinATION PLUS CAW Stir :riper rtet..tireA:.9• 41Q„vrgur tali tlevetonv anil +rs+tf„
C I.X i' V-1- greijkhi tit,la to vs+.1.4 4 let twallert 'iS peffirtski Aka in aL ka) %itt";34Y,. atm* 14 ni if it1
t .'trnni41.o'L.$F74 al: ',.w.I ' Et Anal, atil:italt a tatd t nn 1111 ..-+caul'.
Tenn+ 'unlace a so to* 11 1st $:xis!;" matt wawa twat arinaas Ikon 1;rtovvitawn: L.tritine ?Mitt 17bias.egotatI- liti tZ%Ine1 auk Vey Im.'tsia7
I—O61
K triUKIXI tic 1'JI'awt+!,31f"aAtlltlf.> *SC !4taSt1 Nat Rikar Aka iatoe yid i itan' n as: .a..-4.-.en- Nero 41)+1-•n:e t.at Mss- Oak
I^r O SlAIM Al..:l'.1'laro : rsmt. WtPi. 4Pa'L7= o 1.itchu N its •i"r uNcsAN K t;Ztl t 4-4k,aI`.717pcs as t Labatt I nit s ek,),-=-Ciak , ;sie 1ss :raid*isu+
` l . r watt) tinj.t9Ar' t,. )ciee nit absl 40 ni :kick
6,L d4k'.11riY0�1�}. IAIf]�'1[161T,'��^-I₹r+'..� iris as'Eaeti't fir �I br7a,3ot'r•fir.-
Is ;ftiws.tb .at 6 air Hick telQ4 41 the, ,ty IAA rthat%I,'t taw" g1?1'
rtietute rillira tit !k_i Y3ilir tart' t•nik Banff inn* lAt ii.rariereli 4Is'I halt' ill jetKOTTAI (a4fn 1.c YAITIR g_prrA —i p.X tai T...I 'I.?ir/,-,:�luu_-�s�f:tix.,td 'S''t *1 rat!
tiiAly for tat +'shun r,a,'In't Iit ti.:441•1' natt,:soe ,J 4t1a *t► u1 Serers1_.. ILO Pi f'ots'4 ?.1 it r. .rt :,rtlli0 on! t 1 r:r MStIi,,:.a it . Ciniilb td teen
410 tint shis•e' rtrl.R:ef qii.fairit kW. rn Mt na.7t',Pa?hit inet31'f it m l t . N ai':.cik,
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I Ow T .! r`14i.%MKS ll,1/11 M ITANA,'~I(.411-1 is i f lLCii,M'1ATH_s-N CIA loin :`ail 1 Sind: iltilr i+trtrlVir°It ;t it +r• LTNr•Fw}. awlWWII ' r rrsi+'arsl CVO*fit 1 5Ct1t. aIAR G? 1. i t-' r,r)vr .aj rid yra+w'W bit ilk ; l�at»1�7 stsrtaN Ini tatiitiasplated LSj1&.v tattoo grit T3ir' tfa'9Ffif'D. lit.
!Instil Pads a i:,l!iteim'1- Asa lbotikkr'!• Nt.•adeinii'$ Mkt
_,, lick, ti!rsl. t"�e at. a 't1 tee ►il0
'briars g1rY . Ow, I m clot-m.0v S fife tea coarse tired ?flood
flats sod
rxrkaCt•Ja'pcn t 1sitl kene.`Jij,a! IInnct'ta:ail lout* Slit MIA lisatiniek- RIO gi f.: %I' ir-b- aautt 't's+lMgn satt, rbentaberat.: i tt%l.tatia mating ibatten
poi '3@ vsl noise heat L•srr i trtsicahrai aM Cida k:grew Via-+•rira: sed d Jain :w}! •4sitt�ae 1§.twa Al I tli En duct
Lit icakittI•la sta.l, vt a our rttlorsa'•►•, Sircandine t'diltYt tit •7i1•bo►vsiN ihs r_________. ,aa1, �q,�t'.,�a 7� �p �v_� t,�g-�a�Y-N Or �y��-t,� y i� �t .!
b AM 11 'il+tliii>:ityai3•'4 o_ta._'7 ,b�i� 1 r'ii" L 2e7_'olfl O9� ¶J IVANCli. #tMJ a.L' E
Ilrt,tY4 ! .rail renat9 A 1t J4Yt*k fttiSi 11 a • i►r tl 7 k 119!
time a,cr Taws, a.etriialhrc At.a.iv kMe Lrp Ile as stiaarh.ata It ns .� r to {,it'I•;;i Af!'i.'r
II'ttLk IxA ttcinnntic -HT 14.S in bask LtIItt mots** -al eliiiina1• sat*
i' art .+J'T'rnrva Litrttl;.:rtt PI 11114 •ktita.•a4.p-4.'1' Ibet rtl DIM h. k'f'%+', rivet,
of a19;• +Ra 7 Ili SPA F' wee sufa mi. !.a isfr it 1 m tatSag ran i'rl
,1E Pat it-ark, ' aaiic urttii:t�i iv t S aid 9i i1' 't be 'flab t a+r% •iii ati:tartt i e
I..w. mat ti to Tit snatrytayreed, vsntttin' .14 1s rya 41....11 to #+ 4km
ROCKY ft MS ALLL1411VVNN L11T One.'a', INV Reai_.'A,t"IATKrti lilt tic '' 'tg-xttiit e; unit+ ,ilat'tlit'iz' One 'rae1-a Uhf tv1i "1
' UJRA Ati ESl. t 1411); i. .F-, ', i--- ' !..11-43mk.n 1•a taw, molts tf+it,isti+tl w1I11 nta dif than Titittrri-ro ir i trc,uan t`-+it is t, MY
tl'e'+a„' win in i It.irk li a ter •• ' - I 'gnat•-i nl t!•.'.rtea .i a IMO.: LtR -., .al2`a It i r r la Ti an tLt as conlit , nt 01211 Ihtsi ` Cr'
tt *rim, e3 3 ra Cl act tr,_-1.:, ;i : a.t►u r tr•t thy. taunt. 4eki►•dair a1& that Mid IS A wagtail,'
4!• ci ! :q2 Mil t'.14ef1eniact talhaieth-. t - .and `&'+rife'in Detrlt
o.. • . t r. 1 rt, Ohl*t has 1 ' •, hrc:lit. L;tn,i a? lettut air r" firs S[ rt+ Mrvin e.d •' ruin r st aairs Worn .h,rtu* . --d trihd
.; I P • :Ieor 04:k W ter •In• ni , . r c.gla.t' 4 *plan tit yteionldtr wit e•t - agtuiit,tttlsr., ',rman:ad4 rust grahni. AS settS tafs.9rltln
_141 1W lfl *OW Y4lia r* diriar.tio uL'.iat its.41116416 WI in ueilti text 4•••-ex T1 n' tin a tioairr al Lv.A 4 tv&i Oirdi ••4 5 I Oa wilt 11 t'tAl tie
7311.1 44-rj ta' eakek4ii lit tntliguhl Mg II tr+a
_ Sint Fa noon itT�',Ilr. Toonsi•--Poll5•T. ltFAN sn ovin,p, p.t ,ei
450- 1 Pit ROCKY 11.,AT% $1)I..' VP4 COLBRA 1'1Aket firttueli'TtAy°* orthiSniieli kar Et autikaukivitheki matu•t!1it' kin eg It Awl IYwt
PLESTOCENia L.'.ii la. %Mtia i.rst'mild +JiJ>ad , wl wins L 2; err. •i I. Ltiltearid Curt.t. 1$ re otidc nn 006'+ 29 lti Buck Wa WYE her ate► in
taming Gritted !sit Ar afinininate4.' IS*, gel Of tikkak. are IL'. •I't an &hit Eo`w hiueerear. .a2ti Ail tl',1St real OMAN
-U' a [trait. &'t an giant -k a +;haft v.r r.= t r I. r- - - -
stna 55 -s. �M4 site :tna3*;ri t t+�41o'': lid -14'K :.. . ;t , .- lava' +'C&*' t .,a 3C MD IERtilt.�:XA--k*Ji•dal'-ka at+atr W?
Smu '' i �, And 4811.• Pekin 04 ,tc4•. »phi : -; .• • I . + Hi- Co R}ti'e.i 1°111. ng 14 to[I .rf h:
Ahem! 11 tin; tE.wa tfurfitnl ialau;i k- .*. ' 4n- . ^ € ; 1,..1
tarts•ae tat 4nraci citpn at.si'r tali I15 is .. . .In. flue*: Stele Ni assts2c r;t I elir;,y 11 WC.-mart Oil "a afry.ill+ihitsin cr 41titr .ail
fy� y,� r.��i r�., � tenure ilna t:3O.$r:#i Elyal:!t-t tod r.tti'2V ill Miiamtvt�
r !M� But 71 r•5 3i ;J .li4Lr7JtS yd J3 wl NE ' wi r 1., t Hirlit i-04
L -• . eft i4.S Pr* 01 4iikilislrrldaft. t.:' ; . toad:4 and - f .;a. plthitur t Fmk l rlr-bttlw 1.1.tistitt't—I'tIkv:•ib- iwcitt,it. ant iq eief-in 'nlaly W:lt.
•,ttlrvsac- tiaidaF- t'�'• ti' 'with a, 10 fir. bnett.n1 tta. hS'}i.1!1its.9,a* ;!•t•J It t1k4
QI ';A1tjJ l 1" A"'1tT!• ,roc it riarc ' ` • .. r-.a->i, 5a ttii•r.rni 9bitT Ptak tarnins ,tiet Sal I 'antroct Sitar+ Igfratntyrt. crt k1-tx
Ic.ar=•Inair a/.,atii slt.?aLeIA24Ir .r 44 51i rcpt.i I •t. .. r ! %la $4J-,-T1r$°dlrtaar• treslistidirlia.11 tat tedekg tdtv4.• bas- (Ata•..'a-'"'1 : , •
R. tf tnetIk a$.1 c. Ar,Ekl sit.. 3 Mitt's,* :1 . t .. P t tr:#i.ea,-Nth aie ill WY" poi*JAI 4di rill ir,jolt
reiciu rd et 1% 1 Ma •:ai !it In? i Ma -
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NMRwW1itbACTtt fl J IttAMLT tai MIY i iF -14.4 M-'u'ste Igr i :-•ire'. 1'i :r- t* IiW tran:sd'aks 4. itsri1ig ionatit'd 56,ytttated ' -,s1._w1 r 1'
L.}e;t tut 1'uk-9rt it 'aegt -4111.• tail' tIt!fr Vatted kink! .. , _ tetet'•,i' kNnift4 are' ft..sit 77 in titi:k ti>, Bryan an ft, - 14 I 1 .
ti stile, ''a i. eau t.. t!itri Ir at 4.6 In int: ilia ion Ku sass • I , • • ..fia.e.;, ha tt•1, 1. N`• Ii•ki9 i sttsw.,r4 eel (i c•1;1h- .,1 . •
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Pt trl �r1 A x.1-1 Tb.• 4+1*f1 44 • API 'Fa Dtll[kit to 11"1 In. T.. a Al
faat*,Inatel qai ti he i, r.:•t:.ble tknai. t*•.t•a iw' .tntdevtr, nub, lsttltw Or 0 '. tileiKS A''YI' Kid i::+lr?*. itraildikiter•:S r;cRidl `+ .i: , • ,l r - . • r
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1K:NV.'9LJR tPfA!-atO[_ at4 ANA LAVER C,t r i1-" Cat,' AND ARAPAHO Solio1ntes i± 'rtr.atre_m- Ka''i sI wz na' .I:• ' 'I• ;t • ;•i ti - I -.1 '. •ilatj&i
fU:ic++CR 4.34ETACECKIS FOflMAT1Crd,:'- 4)U4.eyll% irtgnatect4 mull Iiintfi.inl sei014iric 144,04 Q11.1 ,i.. 1 =ir.t_ `•!.14.1 •• r ,. . n h tams
Ahlotia' wil4tbv3led shit rdfai.ws riliTh 3flt semi t6.tn1 k3rrwratei_ A -t a '
. G lym ny 1lna'n 'tira.dlt.�acr. .1,li�cil the pint ,a:: :• :ii- EVE Irii*r
Vilicadirmi '➢aleaa4,TzII, GS tt;sfrII.Sefals' .:ontalarl e11a".ila.11iVNttu:!Ilt and 'it •:.Alihir •.d d:;r Litt iM.&_tt tr t t1lu+t
rslarel s'!•ja and t x!miins ks Iludgieu. 33 eta nit' 17O.n
:: • �.. ...- Itf,�1•4 1t if - tattle en Prod c ic Ant lac fc Siam- Barris.; verify �nrfi
1 In r i•A1iJ6Ar114:, rr4 nitidtAtPIY4 'UPPM 42141.1741.1.41111,"4 1-rin ;rani 1:3S2 1. in
1 - fr .,-Kn al:,1 taal latikletrY •('L''tin t't"h a&Xil' a1.1' eFc rt!►a 1A ;r1 '_ Mtn
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WELD COUNTY
by J.E. Tutney and L. Murray-Williams
Todd Creek Village North
11/31 Weld County, Colorado
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MAP" SHOWING THEE EXTENT OF MINING, LOCATIONS OF I E SHAFTS, ADITS, AIR SHAFTS, AND BEDROCK FAULTS, AND THICKNESS OF
OVERBURDEN ABOVE ABANDONED COAL /TINES IN THE BOULDER-WELD COAL FIELD, BOULDER, WELD, AND ADAMS COUNTIES, COLORADO
Compiled by
' U.S. Geological Survey, Denver, CO
' Colorado Geological Survey, Denver, CO SE. Roberts,' J.L. Hyna,z and CI. Woodward'
3 CanoGraphic Solucians, Boulder, CO
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Sand, Gravel And Quarry Aggregate Resource Map
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pl Ralph R. Shroba June 30, 1974
Todd Creek Village North
Weld County, Colorado
EEC Project # : 1102005 Date : January 2010
North
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