Preliminary Geologic Mapping of Cretaceous and Tertiary Formations in the Eastern Part of the Little Snake River Coal Field, Carbon County, Wyoming By Jon E. Haacke, C.S. Venable Barclay, and Robert D. Hettinger 2016 U.S. Geological Survey Scientific Open_File Report 2016-1170 ABSTRACT In the 1970s and 1980s, C.S. Venable Barclay conducted geologic mapping of areas primarily underlain by Cretaceous coals in the eastern part of the Little Snake River coal field (LSR) in Carbon County, southwest Wyoming. With some exceptions, most of the mapping data were never published. Subsequently, after his retirement from the U.S. Geological Survey (USGS), his field maps and field notebooks were archived in the USGS Field Records. Due to a pending USGS coal assessment of the Little Snake River coal field area and planned geological mapping to be conducted by the Wyoming State Geological Survey, Barclay’s mapping data needed to be published to support these efforts. Subsequently, geologic maps were scanned and georeferenced into a geographic information system, and project and field notes were scanned into Portable Document Format (PDF) files. Data for seventeen 7˝-minute quadrangles are presented in this report. This publication is solely intended to compile the mapping data as it was last worked on by Barclay and provides no interpretation or modification of his work. DISCLAIMERS Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also contains copyrighted material as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. This database, identified as OFR 2016-1170, has been approved for release and publication by the U.S. Geological Survey (USGS). Although this database has been subjected to rigorous review and is substantially complete,the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the U.S. Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty. The USGS or the U.S Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. DATA FILES List of files: ofr20161170.pdf ofr20161170_Readme.txt ofr20161170_FieldNotes.zip Bridger Pass 7.5 Quadrangle-Book1.pdf Browns Hill 7.5 Quadrangle-Book1.pdf Browns Hill 7.5 Quadrangle-Book2.pdf Cottonwood Rim 7.5 Quadrangle-Book1.pdf Dixon 7.5 Quadrangle-Book1.pdf Dixon_SmileyDraw aka Baggs SE and NE 7.5 Quadrangles-Book1.pdf Fillmore Ranch 7.5 Quadrangle-Book1.pdf Garden Gulch 7.5 Quadrangle-Book1.pdf Gargen Gulch 7.5 Quadrangle-Book2.pdf Gargen Gulch 7.5 Quadrangle-Book3.pdf Gargen Gulch 7.5 Quadrangle-Book4.pdf Garden Gulch-Sulphur Springs aka Doty Mountain SE and NE 7.5 Quadrangles-Book 1.pdf Garden Gulch-Sulphur Springs aka Doty Mountain SE and NE 7.5 Quadrangles-Book 2.pdf Garden Gulch-Sulphur Springs aka Doty Mountain SE and NE 7.5 Quadrangles-Loose Notes.pdf Grieve Reservoir 7.5 Quadrangle-Book 1.pdf Grieve Reservoir 7.5 Quadrangle-Book 2.pdf Grieve Reservoir 7.5 Quadrangle-Book 3.pdf Grieve Reservoir 7.5 Quadrangle-Book 4.pdf Ketchum Buttes 7.5 Quadrangle-Book 1.pdf Ketchum Buttes 7.5 Quadrangle-Book 2.pdf Ketchum Buttes 7.5 Quadrangle-Book 3.pdf Ketchum Buttes 7.5 Quadrangle-Loose Notes.pdf McCarty Ranch 7.5 Quadrangle-Book 1.pdf Savery 7.5 Quadrangle-Book 1.pdf Savery 7.5 Quadrangle-Book 2.pdf Savery 7.5 Quadrangle-Book 3.pdf Singer Peak 7.5 Quadrangle-Book 1.pdf Smiley Draw 7.5 Quadrangle-Book 1.pdf Tullis 7.5 Quadrangle-Book 1.pdf Tullis 7.5 Quadrangle-Book 2.pdf Tullis 7.5 Quadrangle-Book 3.pd OFR-20161170_GIS.zip Maps Known_Recoverable Coal_Resource_Assessment KRCRA_Sheet_1 (tif/tfwx/tif.aux.xml/tif.ovr) KRCRA_Sheet_2 (tif/tfwx/tif.aux.xml/tif.ovr) Quadrangles Bridger Pass (tif/tfwx/tif.aux.xml/tif.ovr) Browns Hill (tif/tfwx/tif.aux.xml/tif.ovr) Coal Mine Ridge (tif/tfwx/tif.aux.xml/tif.ovr) Cottonwood Rim (tif/tfwx/tif.aux.xml/tif.ovr) Dixon (tif/tfwx/tif.aux.xml/tif.ovr) Filmore Ranch (tif/tfwx/tif.aux.xml/tif.ovr) Garden Gulch (tif/tfwx/tif.aux.xml/tif.ovr) Grieve Reservoir (tif/tfwx/tif.aux.xml/tif.ovr) Ketchum Buttes (tif/tfwx/tif.aux.xml/tif.ovr) McCarty Ranch (tif/tfwx/tif.aux.xml/tif.ovr) Pole Gulch (tif/tfwx/tif.aux.xml/tif.ovr) Savery (tif/tfwx/tif.aux.xml/tif.ovr) Separation Peak (tif/tfwx/tif.aux.xml/tif.ovr) Singer Peak (tif/tfwx/tif.aux.xml/tif.ovr) Smiley Draw (tif/tfwx/tif.aux.xml/tif.ovr) Sulphur Springs (tif/tfwx/tif.aux.xml/tif.ovr) Tullis (tif/tfwx/tif.aux.xml/tif.ovr) Shapefiles 7.5_Minute_Quadrangle_Grid_Wyoming.shp (dbf/prj/sbn/sbx/shp.xml/shx) CountyOrEquivalent.shp (dbf/prj/sbn/sbx/shp.xml/shx) PLSS_Sections.shp (dbf/prj/sbn/sbx/shp.xml/shx) PLSS_Townships.shp (dbf/prj/sbn/sbx/shp.xml/shx) ofr20161170_preliminary_mapping.mxd ofr20161170_preliminary_mapping.pmf ofr20161170_metadata.zip ofr20161170.met/.xml ofr20161170_Nat_bdy_dataset_WY.met/xml HOW TO OBTAIN THE DIGITAL FILES The digital files constituting the geologic map database of this report can be obtained via the Internet from the U.S. Geological Survey publications website. Go to the web page at https://pubs.er.usgs.gov/publication/ofr20161170 or http://dx.doi.org/10.3133/ofr20161170 and follow the directions to download the files. The manuscript is a Portable Document Format (.pdf), which requires Adobe Acrobat for viewing, and from which paper copies may be printed. Acrobat software runs on a variety of systems, and is available for download free of charge from Adobe at http://www.adobe.com. ArcReader may be downloaded free of charge from http://www.esri.com/software/arcgis/arcreader/download for viewing additional files included in this report.