No current usage.
(Rocks of †Montgomery Limestone (CA) reallocated to unnamed limestone blocks in Sierra City melange of Shoo Fly Complex. See Shoo Fly.)
early Silurian
Named from occurrence on Montgomery Creek, two and one-third mi south of Taylorsville, Plumas Co., CA (Diller, 1908).
Sierra Nevada 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 ([ ]).