Usage:
No current usage.
(†Hardy Hill Quartzite Member of Orfordville Formation (NH,VT) considered abandoned.)
Geologic age:
Middle Ordovician
Type section, locality, area and/or origin of name:
[Type locality]: about 2 mi northeast of Lebanon along Hardy Hill Brook, northwestern corner of Mascoma 15-min quadrangle, Grafton Co., northwestern NH (Chapman, 1939).
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 ([ ]).