Usage:
Halls Stream Grit Member of Ironbound Mountain Formation (NH*,VT*)
Originally misspelled Hall Stream on 1961 VT State Geol. Map.
Geologic age:
Early Devonian
Type section, locality, area and/or origin of name:
[Type area]: excellent outcrops along eastern slopes of Halls Stream valley about 3.5 mi north of Beecher Falls (Essex Co., northeastern VT), north of VT-NH State line and along the International border, [in area around Lat. 45 deg. 03 min. N., Long. 71 deg. 30 min., western edge Pittsburg 7.5-min quadrangle, Coos Co., northern NH]. Name credited to Prof. James B. Thompson, Jr., Harvard Univ. (Myers, 1964).
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 ([ ]).