Usage:
Buffalo Peaks Andesite (CO*)
Geologic age:
early Tertiary (Oligocene?)*
Type section, locality, area and/or origin of name:
Notable exposures from valley of Trout Creek, in sec. 3, T. 14 S., R. 77 W., past Pony Spring, to northeast spur of Buffalo Peaks in Salt area, southern Mosquito Range, Park and Chaffee Cos., central CO (Gould, 1935).
AAPG geologic province:
Eagle basin*
South Park 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 ([ ]).