National Geologic Map Database
General Information
- Title: Geophysical log signatures of Lower Tertiary and Upper Cretaceous rocks in the Powder River Basin, Wyoming and Montana
- Author(s): Seeland, David, Hardie, J.K., Gibbons, A.B., Johnson, E.A., Biewick, L.R.H., McLellan, M.W., Molina, C.L., and Pierce, F.W.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Oil and Gas Investigations Chart OC-140
- Publication Date: 1993
- Map Scale: 1:7,000,000
- Cross Section: Yes
- North Latitude: 46° 5' 0" N (46.0833)
- South Latitude: 42° 42' 0" N (42.7000)
- East Longitude: 104° 5' 0" W (-104.0833)
- West Longitude: 107° 12' 30" W (-107.2083)
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- U.S. Geological Survey
- USGS Information Services
- Box 25286
- Denver, CO 80225
- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.