Usage:
LaHood Formation of Belt Supergroup (MT*)
Geologic age:
Mesoproterozoic*
Type section, locality, area and/or origin of name:
Type section: in sec. 12, T. 1 N., R. 3 W., and sec. 7, T. 1 N., R. 2 W., Jefferson Co., MT (Alexander, 1955).
Principal reference section designated 6 mi east of type section, along ridge in W/2 sec. 13, T. 1 N., R. 2 W., Jefferson Island 15-min quadrangle, MT (McMannis, 1963).
AAPG geologic province:
Northern Rocky Mountain region*
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 ([ ]).