Nugget Sandstone (CO*,ID*,UT*,WY*)
Bell Springs Member (CO*,WY*).
Triassic(?) and Early Jurassic*
Named from Nugget Station, on Oregon Short Line, [a few mi west of Fossil, in SW/4 sec. 4, T. 21 N., R. 118 W., Nugget 7.5-min quadrangle, Lincoln Co.], southwestern Wyoming, at and near which the beds are well exposed (Veatch, 1907).
Central Western Overthrust*
Denver basin*
Green River basin*
Snake River basin*
Wind River basin*
Yellowstone province*
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 ([ ]).