Calderwood Formation (ME*)
Devonian(?)*
Notable exposures on Vinalhaven Island, Knox Co., central southern ME. Named from Calderwood Neck, [Vinalhaven 7.5-min quadrangle, Knox Co., central southern ME] (Smith, 1896).
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 ([ ]).