Usage:
Beartooth Butte Formation (ID*,MT*,WY*)
Geologic age:
Early Devonian*
Type section, locality, area and/or origin of name:
Named from occurrence on Beartooth Butte, just northwest of Beartooth Lake on southeast flank of Beartooth Mountains, in southwestern corner of T. 58 N., R. 105 W., Park Co., northwestern WY, 3 mi south of Montana line and 18.4 mi east of Yellowstone National Park boundary line (Dorf, 1934).
AAPG geologic province:
Bighorn basin*
Central Montana uplift*
Montana folded belt*
Powder River basin*
Snake River basin*
Yellowstone province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).