Usage:
Hams Fork Conglomerate Member of Evanston Formation (WY*)
Hams Fork Member of Evanston Formation (UT*)
Geologic age:
Late Cretaceous (Campanian to Maastrichtian)*
Type section, locality, area and/or origin of name:
Type section: 1 to 1.5 mi west of strip mine north of Elkol, near middle of eastern part of sec. 36, T. 21 N., R. 117 W., Kemmerer 15-min quadrangle, Lincoln Co., southwestern WY. Named from Hams Fork stream (Oriel and Tracey, 1970).
AAPG geologic province:
Green River basin*
Uinta uplift*
Wasatch 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 ([ ]).