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National Geologic Map Database

Geologic Unit: Tsoyawata

Usage:

[/?] Tsoyawata Bed of /Mazama Member of Mount Mazama Formation (NV)
[/?] Tsoyawata Bed (CA)


Geologic age:

Quaternary
Holocene


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

Type section: stream cut on the south side of Long Valley Creek, southwest of U.S. Highway 395, 1.1 km west of the CA-NV State line, in center NE/4 NW/4 sec. 19, T. 21 N., R. 18 E., Loyalton 15-min quadrangle, Sierra Co., CA. Tsoyawata is the Washo Indian word for Long Valley Creek (Davis, 1978).


AAPG geologic province:

Great Basin 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 ([ ]).