Usage:
No current usage.
(Rocks of †Gilpin Peak Tuff (CO) reallocated to Ute Ridge Tuff, Blue Mesa Tuff, Dillon Mesa Tuff, and Sapinero Mesa Tuff. See Ute Ridge, Blue Mesa, Dillon Mesa, and Sapinero.)
Geologic age:
early Tertiary (Oligocene)
Type section, locality, area and/or origin of name:
Named for a specific sequence of rocks exposed in a 1,400-ft-thick section at Gilpin Peak, near head of Canyon Creek, about 7 mi west-southwest of Ouray, western San Juan Mountains, Ouray Co., southwestern CO (Luedke and Burbank, 1963).
AAPG geologic province:
San Juan Mountains province
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 ([ ]).