Prescott Complex (MA*)
Cooleyville Granitic Gneiss (MA*).
Devonian*
Packard Mountain in Prescott, Hampshire Co., west-central MA (Emerson, 1917).
Town of Prescott was obliterated by establishment of Quabbin Reservoir, so all exposures are present on Prescott Peninsula of Quabbin Reservoir (Robinson and Luttrell, 1985).
New England 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 ([ ]).