Usage:
Hardwood Mountain Formation (ME*)
Geologic age:
Silurian (Wenlock to Ludlow?)*
Type section, locality, area and/or origin of name:
Type area: 1 mi southwest of Hardwood Mountain, Hobbstown Twp., Spencer [Spencer Lake] 15-min quadrangle, Somerset Co., west-central ME. Named from Hardwood Mountain [Lat. 45 deg. 26 min. 26 sec. N., Long. 70 deg. 19 min. 54 sec. W., Spencer Lake 7.5-min quadrangle] (Boucot, 1961).
AAPG geologic province:
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 ([ ]).