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National Geologic Map Database

Geologic Unit: Hoback

Usage:

Hoback Formation (WY*)


Subunits:

Skyline Trail Conglomerate Member (WY).


Geologic age:

Tertiary*
Paleocene*


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

Type locality: exposures on southwestern side of Game Hill, opposite mouth of Cliff Creek, [in S/2 sec. 14], T. 38 N., R. 114 W., [southwestern corner Granite Falls 7.5-min quadrangle], Sublette Co., western WY. Good exposures along Hoback River, on northeast side of U.S. Highway 187 [U.S. 189/191], extending from Battle Mountain [northwest of type in adjacent Jackson 7.5-min quadrangle] southeastward for about 4 mi (Dorr, 1952).


AAPG geologic province:

Green River basin*
Yellowstone province*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).