Usage:
No current usage.
(Sediments of †Blue Mountain Drift (ND-local) reallocated to Lostwood drift (informal) in Coleharbor Formation. See Lostwood.)
Geologic age:
Quaternary (Pleistocene)
Type section, locality, area and/or origin of name:
Origin of name not stated by author (Pettyjohn, 1967). [Probably named from Blue Mountain (now called Blue Hill), in secs. 25, 26, 35, and 36, T. 150 N., R. 86 W., eastern edge of Blue Hill 7.5-min quadrangle, northern McClean Co., ND.]
AAPG geologic province:
Williston basin
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 ([ ]).