Usage:
Harwood Member of Poplar River Formation (ND)
Geologic age:
Pleistocene
Type section, locality, area and/or origin of name:
Type section (subsurface): North Dakota Geological Survey test hole, Boring T-18, in SW/4 SW/4 SW/4 sec. 11, T. 147 N., R. 49 W., Traill Co., ND. Named from village of Harwood, Cass Co., east-central ND (Arndt, 1977).
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 ([ ]).