U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Great Hill

Usage:

Great Hill Formation of Bolton Group (CT)


Geologic age:

Early Silurian


Type section, locality, area and/or origin of name:

Not stated. Great Hill is in central part of Middle Haddam quadrangle, Middlesex Co., central CT (Eaton and Rosenfeld, 1960).


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 ([ ]).