No current usage.
(†Maple Formation of Oquirrh Group (UT-recognized locally in Bingham district) considered abandoned. Lower part reallocated to Butterfield Peaks Formation of Oquirrh Group. See Butterfield Peaks.)
Pennsylvanian, Early
Morrowan
Pennsylvanian, Middle
Atokan
Type section: in secs. 22 and 27, T. 4 S., R. 3 W., Utah and Salt Lake Cos., UT. Section begins in Maple Flat and traverses north-northeast up spur opposite Maple Canyon, Bingham mining district. Origin of name not stated by authors, but probably named from Maple Flat (Welsh and James, 1961).
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 ([ ]).