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National Geologic Map Database

Geologic Unit: Sugarloaf

Usage:

Sugarloaf Quartzite of Libby Creek Group of Snowy Pass Supergroup (WY*-Medicine Bow Mountains)


Geologic age:

Paleoproterozoic*


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

Not designated. Is exposed on northeast side of Sugarloaf Peak, on inlet to Brooklyn Lake, in T. 16 N., R. 79 W., Albany Co., WY. Origin of name not stated by author, but probably named from Sugarloaf Peak (Blackwelder, 1926).


AAPG geologic province:

Northern Rocky Mountain region*


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 ([ ]).