Usage:
Baker Lake Porphyry (CO)
Geologic age:
Tertiary
Type section, locality, area and/or origin of name:
Notable exposures in northwestern part of South Park, in secs. 17, 19, 20, 28, 29, and 30, T. 7 S., R. 75 W., and in secs. 24 and 25, T. 7 S., R. 76 W., Park Co., central CO. Outcrop is 4 mi long and averages 0.5 mi wide. Central part of outcrop has been eroded to a depression which now holds Baker Lake (Stark and others, 1949).
AAPG geologic province:
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 ([ ]).