Usage:
Littleton Formation (ME*,MA*,NH*,VT*)
Littleton Formation of Bolton Group (CT*)
Subunits:
(alphabetical): Boott Member (ME,NH), Concord Pond Member (ME), Dakin Hill Member (NH), Durgin Brook Member (NH), Erving Member (MA), Howard Pond Member (ME), Hubbard Hill Member (NH), Jenness Pond Member (NH), May Pond Member (NH), Mount Pisgah Member (CT*), Peterborough Member (NH), Pittsfield Member (NH), Souhegan Member (NH), Wilbur Mountain Member (ME), Wild Goose grits (NH-informal).
Geologic age:
Early Devonian*
Type section, locality, area and/or origin of name:
Around Slate Ledge, Walker Mountain, and district lying 1 mi to southwest, Littleton Twp., Grafton Co., NH (Billings, 1935).
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 ([ ]).