Usage:
Ironbound Mountain Formation of Seboomook Group (ME*,NH*)
Ironbound Mountain Formation (VT*)
Subunits:
Grenier Ponds Grit Member (ME*)
Geologic age:
late Silurian to Early Devonian*
Type section, locality, area and/or origin of name:
Along Pittston Farm-Rockwood Road, beginning at BM 1402, south to next 1402 BM. Named from mountain in Penobscot Lake quadrangle, Somerset Co., west-central ME (Pollock, 1987; Moench and others, 1995).
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 ([ ]).