Geology of the Elliston region, Powell and Lewis and clark Counties, Montana : a description of rocks and structures in the region of the imbricate front of Sapphire thrust plate, from a reconnaissance study /
Geology of the Elliston region, Powell and Lewis and clark Counties, Montana : a description of rocks and structures in the region of the imbricate front of Sapphire thrust plate, from a reconnaissance study /
by R.G. Schmidt ... [et.al.].
- Washington : United States Government Printing Office, 1994
- 25 p. : ill. ; 28 cm.
- U.S. geological survey bulletin ; 2045 .