Usage:
Cumberland Head Formation (NY*,VT*)
Notable exposures in Lake Champlain area.
Geologic age:
Late Ordovician (Mohawkian to Cincinnatian; Chatfieldian to Edenian)*
Type section, locality, area and/or origin of name:
Type area: South Hero Island, Grand Isle Co., VT, 2 mi southeast of Cumberland Head. Named from Cumberland Head near Plattsburgh, Clinton Co., NY (Kay, 1937).
AAPG geologic province:
Appalachian basin
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 ([ ]).