KEEFER, W. R.
Geology of the Shotgun butte area Fremont county, Wyoming / by W. R. Keefer and M. L. Troyer. -- Washington : United States Government Printing Office, 1964 - 123 p. + map. -- (Geological Survey Bulletin ; 1157).
Geología
Wyoming
55(787)
Geology of the Shotgun butte area Fremont county, Wyoming / by W. R. Keefer and M. L. Troyer. -- Washington : United States Government Printing Office, 1964 - 123 p. + map. -- (Geological Survey Bulletin ; 1157).
Geología
Wyoming
55(787)