Usage:
East Fork Hills Formation (AK*)
Geologic age:
Ordovician to Middle Devonian*
Type section, locality, area and/or origin of name:
Type locality: along crest of East Fork Hills, in sec. 14, T. 27 S., R. 25 E., Medfra A-3 quadrangle (scale 1:63,360), west-central AK (Dutro and Patton, 1982).
AAPG geologic province:
Alaska West-Central 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 ([ ]).