Usage:
Railroad Canyon Formation (ID*,MT*)
Geologic age:
Late Mississippian (Chesterian)*
Type section, locality, area and/or origin of name:
Type section: in NE/4 sec. 31 and SE/4 sec. 30, T. 14 S., R. 27 E., Bannock Pass 7.5-min quadrangle, Lemhi Co., ID (Wardlaw and Pecora, 1985).
AAPG geologic province:
Idaho Mountains province*
Montana folded belt*
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 ([ ]).