Usage:
Stonehouse Canyon Member of Tyler Formation of Amsden Group (MT*)
Stonehouse Canyon Member of Tyler Formation (ND*)
Geologic age:
Late Mississippian (Chesterian)*
Type section, locality, area and/or origin of name:
Type section: along prominent cliff forming west end of Alaska Bench from NE/4 SW/4 sec. 25, T. 13 N., R. 19 E., to the SW/4 sec. 36, T. 13 N., R. 19 E., and thence continued to the NE/4 sec. 1, T. 12 N., R. 19 E., Fergus Co., central MT (=beds 18 to 26 of Easton, 1962). Named from Stonehouse Canyon, in secs. 29, 31, and 32, T. 11 N., R. 21 E., Golden Valley Co., central MT (Maughan and Roberts, 1967).
Reference section: Stonehouse Canyon, in secs. 29, 31, and 32, T. 11 N., R. 21 E., Golden Valley Co., central MT (Maughan and Roberts, 1967).
AAPG geologic province:
Williston basin*
Powder River basin*
Central Montana uplift*
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 ([ ]).