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National Geologic Map Database

Geologic Unit: Tahoe

Usage:

Tahoe Till (CA*,NV*)
Tahoe Drift (CA*)


Geologic age:

Pleistocene*


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

Named from Lake Tahoe, along western shore of which several large glaciers of this stage descended from Sierra Nevada and built strong moraines, but Lake Tahoe itself is not of glacial origin (Blackwelder, 1931).
Moraines of stage flank Rock Creek Canyon in Sierra Nevada west of U.S. Highway 395, Mono Co., eastern central CA (US geologic names lexicon, USGS Bull. 1200).


AAPG geologic province:

Great Basin 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 ([ ]).