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National Geologic Map Database

Geologic Unit: Big Sand Draw

Usage:

Big Sand Draw Sandstone Lentil of White River Formation (WY*)


Geologic age:

early Tertiary (late Eocene; Chadronian NALMA)*


Type section, locality, area and/or origin of name:

Type section: north of Wagon Bed Spring, south-central Fremont Co., west-central WY. Named from exposures south of Big Sand Draw anticline in SE/4 sec. 25, T. 32 N., R. 95 W., south-central Fremont Co., west-central WY (Van Houten, 1964).


AAPG geologic province:

Wind River 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).