Fourmile Gneiss (MA*)
Cascade on Fourmile Brook, immediately west of MA Highway 63 at Northfield Farms, Northfield 7.5-min quadrangle, Franklin Co., northwestern MA (Ashenden, 1973).
New England province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 ([ ]).