Bedrock geologic map of the Burntfork quadrangle, Uinta and Sweetwater counties, southwestern Wyoming

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unmapped TBi TbE TbDm TbCu TbDl TbDu TbCm TbCl unmapped TbDu TbDm TbDm TbDl TbCu TbCm TbCu TbDl TbDm TbDu TbE TBi TbE 1 3 1 1.5 i d i d d i c d d c c c i HFT BELS BRGB HFLS BFLS BB S ULS ULS BELS BELS BBI BBI BBI BBI BELS ULS BBS LTLS HFT SHLS HF_T BB_S HF_T LTL_S ULS BELS B_B S LTLS

GEOLOGIC MAP UNITS

DISCLAIMERS

U sers of these map s are cautioned ab out using the data at scales different than those at which the m ap s were co m p iled — using this data ata largerscale will no tp ro vide greater accuracy,and in fact,itis a m isuse of the data.

T he Wyom ing State Geolo gical Survey (WSGS) and the State of Wyo m ing makes no rep resentation or warranty, expressed or im plied, regarding the use, accuracy, or com pleteness of the data presented herein, or from a map printed fro m these data; no r shall the act of distrib ution constitute any such warranty. The WSGS does no t guarantee these digital data herein,o rm ap p rinted fro m these data,to b e free o f erro rs o r inaccuracies.

T he WSGS and the State of Wyo m ing disclaim s any responsibility or liab ility fo r interp reta tions fro m this digital data o rm ap p rinted from these digital data,or decisions b ased thereon. The WSGS and the State of Wyo m ing retains and do es no t waive sovereign im m unity.

T he use of or reference to tradem arks,trade nam es, or o therp ro ductor co m p any nam es in this product is for descriptive or informatio nal purpo ses, or is pursuant to licensing agreem ents between the WSGS or the State of Wyo m ing and software or hardware develop ers/vendors,and does no tim ply endorsem ento f those p ro ducts b y the WSG S o r the State o f Wyo m ing.

KEY TO MEASURED SECTIONS

(b lue indicates sections sho wn o n this m ap )

Map reference Name of measured section Reference sources *

a Reference Sectio n,T win Buttes Mem b er Ap pendix 2,T ab le 18

(NortheastSage Creek Mo untain)

b SouthwestSage Creek Mountain Ap pendix 5,T ab le 20

c SouthwestCedar Mountain Ap pendix 3,T ab le 19

d T yp e Section,T urtle Bluff Mem b er Ap pendix 4,T ab le 19

(West Cedar Mountain)

e SoutheastCedarMo untain Ap pendix 6,T ab le 21

f T yp e Section,T win Buttes Mem b er Ap pendix 1,T ab le 17

(SoutheastT win Buttes)

g NortheastHickey Mountain T ab le 22

h NortheastSage Creek Mo untain T ab le 23

i South CedarMountain T ab le 25

j North CedarMountain T ab le 24

k NortheastCedarMo untain T ab le 27

l NortheastMass Mo untain T ab le 26

m NorthwestBlack Mo untain T ab le 29

n NorthwestT win Buttes T ab le 28

* Refer to Wyo m ing State Geo lo gical Survey Rep ortof Investigation s 57 (2007).

ABBREVIATIONS FOR MARKER UNITS (red indicates shown on this m ap) BBI Base o f Bishop Conglo m erate

BRGB Behunin Reservoirgyp sum b ed BELS Basal E lim esto ne

ULS U pp erw hite lim esto ne BBS Basal b lue sheetsandsto ne

~BBS App ro xim ate level o f Basal b lue

sheet sandsto ne

HRL Hickey Reservo ir lim esto ne

LTLS L o netree lim estone HFLS Henrys Fork lim esto ne

HFT Henrys Fork tuff BFLS BurntFork lim esto ne

HRRB Horse Ranch red b ed

HMLS Hickey Mo untain lim esto ne SHLS Soap Holes lim esto ne

BKLS Butcher Knife lim estone

WRLS Whiskey Reservo ir lim esto ne

SCLS Sage Creek lim esto ne

NOTICE TO USERS OF W YOMING STATE GEOLOGI CAL SURVEY INFORMATION

Most informatio n pro duced by the Wyo m ing State Geolo gical Survey (WSGS) is p ublic dom ain, is not cop yrighted, and may be used without restriction. We ask that users credit the m ap autho rs and the WSGS as a co urtesy when using this informatio n in who le or in p art. This app lies to published and unpublished materials in p rinted o r electro nic fo rm .Contactthe WSGS if you have any questio ns ab outciting m aterials o r p rep aring acknowledgem ents.Y o ur co op eratio n is app reciated.

SCALE 1:24,000 Miles 1 0.5 0 1 Feet 1,000 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 Kilometers 1 0.5 0 1

CONTOUR INTERVAL 20 FEET

NATIONAL GEODETIC VERTICAL DATUM OF 1929 (Re

ed R ese

rvoir_{) (Soap Holes Reservoir)} (Hors

e Ran ch) (M cK inn on ) (Ph_{il P} ico Mou ntain₎ (Hoop Lake) (Hole in th e Rock) (L on et re e)

BISHOP CONGLOMERATE (Oligo cene)

BRIDGER FORMATION (early and m iddle Eocene) Turtle Bluff Member (BridgerE) (middle Eocene) Twin Buttes Member (“U p per Bridger”

o rBridgerC and D) (m iddle Eocene) upperBridgerD m iddle Bridger D lo werBridgerD upperBridgerC m iddle Bridger C lo werBridgerC

Blacks Fork Member (“L o wer Bridger” or BridgerA and B)(early and m iddle Eocene)

upperBridgerB* m iddle Bridger B* lo werBridgerB*

Bridger A*

* no tpresento n this m ap

GENERALIZED STRATIGRAPHIC SECTION IN THE HICKEY, SAGE CREEK, AND CEDAR MOUNTAINS AREA

OPEN FILE REPORT 07-7G

Burntfork 1:24,000-scale Geologic Map

TbCu TbCm TbCl TbBu TbBm TbBl TbA TBi TbE TbDu TbDm TbDl

Geology - Interpreting the past to provide for the future

WYOMING STATE GEOLOGICAL SURVEY

Ronald C. Surdam, State Geologist

Laramie, Wyoming

EXPLANATION

Base Map from U.S. Geological Survey 1:24,000-scale topographic map of the Burntfork, Wyoming 7 1/2-minute Quadrangle, 1964

Projection: Universal Transverse Mercator (UTM), zone 12 North American Datum of 1927 (NAD 27)

1,000 meter grid ticks: UTM zone 12

10,000-foot grid ticks:Wyoming State Plane Coordinate System, West zone

A digital version of this map is also available on CD-ROM.

People with disabilities who require an alternative form of communication in order to use this publication should contact the Editor, Wyoming State Geological Survey. TTY Relay Operator 1 (800) 877-9975f

Digital cartography by Justin E. Scott and David W. Lucke

Wyoming State Geological Survey P.O. Box 1347 - Laramie, WY 82073-1347 Phone: (307) 766-2286 - Fax: (307) 766-2605 Email: wsgs_sales@uwyo.edu UTM GRID CONVERGENCE (GN)

1980 MAGNETIC DECLINATION (MN) AT CENTER OF SHEET DIAGRAM IS APPROXIMATE o 0 37' 15 o 11MILS 257 MILS

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BRIDGER FORMATION PROJECT LOCATION MAP Lone tree Burnt fork McKin non Horse Ran ch Antel ope W ash Reed Rese rvoir Linwo od C anyo n Devils Play groun d Soap Holes Res ervoir Black Sprin g Res ervoir 109°40'W 109°40'W 109°45'W 109°45'W 110°15'W 110°15'W 109°50'W 109°50'W 110°10'W 110°10'W 109°55'W 109°55'W 110°5'W 110°5'W 110°W 110°W 41°10'N 41°10'N 41°5'N 41°5'N 41°N 41°N

INDEX MAP OF 1:24,000 - SCALE QUADRANGLES

Num b er indic ates Wyo m ing State Geo lo gic al Survey Op en File Rep o rt (OFR) (1:24,000-scale digital geo lo gic m ap s are inc luded o n CD fo r RI-57) A 1:100,000 - scale geo lo gic m ap o f all quadrangles ab o ve is p ublished in Wyo m ing State Geo lo gic al Survey Rep o rt o f Investigations (RI) 57

OFR 0 7-7A OFR 0 7-7B OFR 0 7-7F OFR 0 7-7G OFR 0 7-7C OFR 0 7-7H OFR 0 7-7D OFR 0 7-7E OFR 0 7-7I OFR 0 7-7J

BEDROCK

GEOL OGIC

MAP

OF

PART

OF

T HE

BU RNT FORK

QU ADRANGL E,

U INT A

AND

SWEET WAT ER

COU NT IES,

SOU T HWEST ERN

WY OMING

b y

P.

C.

Murphey,

E.

Evano ff,

J.

E.

Haessig,

and

N.

Matthews

2007

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BELS

MAP SYMBOLS

Marker unit,exp o sed; see ABBREV IAT IONS FOR MARKER U NITS Marker unit,inferred where p o o rly exp o sed; see ABBREV IAT IONS

FOR MARKER U NITS

Measured sec tion; do tted line indic ates b reak o r o ffset in sec tion; see KEY T O MEASU RED SECT IONS

Strike and dip o f b eds

T yp e lo c ality lo c ation fo r m arker units listed b elo w

HFT SHLS

µ

1

b