Usage:
Road River Formation (AK*)
Geologic age:
Ordovician to Early Devonian*
Type section, locality, area and/or origin of name: (See Canadian Lexicon)
Type section: unnamed tributary of Road River (Lat. 66 deg. 44 min. N., Long. 135 deg. 46 to 48 min. W.), northern Yukon Territory, Canada (Jackson and Lenz, 1962)
AAPG geologic province:
Alaska East-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 ([ ]).