Usage:
Crosby Breccia Member of Wiggins Formation (WY)
Geologic age:
early Tertiary (Oligocene and possibly late Eocene)
Type section, locality, area and/or origin of name:
Type section: 0.25 mi west of Dollar's cabin on southeast flank of Mount Crosby, near Kirwin [ghost town at approx. Lat. 43 deg. 52 min. 36 sec. N., Long. 109 deg. 17 min. 50 sec. W., Shoshone National Forest], , Kirwin 15-min quadrangle, Park Co., southern Absaroka Range, northwestern WY (Wilson, 1964a).
Probably named from Mount Crosby (Wilson, 1963).
AAPG geologic province:
Bighorn basin
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 ([ ]).