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National Geologic Map Database

Geologic Unit: Sawatch

Usage:

Sawatch Quartzite (CO*)
Sawatch Formation (CO)
Sawatch Sandstone of Horseshoe Mountain Group (CO)


Geologic age:

Late Cambrian (Dresbachian)*


Type section, locality, area and/or origin of name:

Type section: Deadmans Gulch, in sec. 14, T. 14 S., R. 84 W., Gunnison Co., western central CO (Bush and Bush, 1974).
Named from persistent occurrence around flanks of Sawatch Range, Pitkin Co., western central CO (Eldridge, 1894).


AAPG geologic province:

Denver basin
Eagle basin*
Piceance 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).