Usage:
Cram Hill Formation (VT*)
Subunits:
(alphabetical) --all in VT*: Coburn Hill Metabasalt Member, Umbrella Hill Conglomerate Member.
Geologic age:
Early to Middle Ordovician*
Type section, locality, area and/or origin of name:
Exposures on east side of Cram Hill, 3.5 miles south-southeast of Roxbury, Barre quadrangle, Washington Co., VT (Currier and Jahns, 1941).
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 ([ ]).