Usage:
Overland Member of Fort Union Formation (CO*,WY*)
Geologic age:
late middle and late Paleocene
Type section, locality, area and/or origin of name:
Type section: in area referred to locally as the "Cedars," located astride the Dad arch near WY State Highway 789. Base of section about 2,150 ft from east line and 1,300 ft from south line, in sec. 34, T. 17 N., R. 92 W.; top is 600 ft from west line and 1,150 ft from south line of sec. 34, T. 17 N., R. 92 W., Doty Mountain 7.5-minute quadrangle, Carbon Co., WY. Named from Overland Trail, which passes across exposures in Doty Mountain 7.5-minute quadrangle (Honey and Hettinger, 2004).
AAPG geologic province:
Green River 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 ([ ]).