Tephra layers form important chronostratigraphic marker horizons within the
Wisconsinan loess-paleosol stratigraphy of the Palouse, Washington State.
This paper details the presence of disseminated glass shards of the Trego H
ot Springs tephra that has not previously been recognized within the Palous
e or environs. The tephra provides additional chronological control for the
regional Late Wisconsinan stratigraphy and raises the possibility of corre
lating the paleoclimatic proxy record contained within the Palouse to those
of lake sequences in Oregon, California, and Nevada. (C) 2001 University o
f Washington.