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National Geologic Map Database

Geologic Unit: Ironbound Mountain

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 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 ([ ]).