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Collector: Grinnell - 1925
Location: Lassen County
Date: June 12, 1925
Page Number: 2459

Came on up the "Lassen highway" last evening
and camped for the night on the flat at the
southeast base of (unknown1) Hill within a mile of
Payne Creek P.O. - altitude close to 1800 ft. Here
is an almost pure stand of smallish yellow pines
and black oaks, some of the latter large. This
tract of woods constitutes an "island" of transition (?)
at 1700 to 2100 ft. alt., entirely surrounded by
Upper Sonoran (?) in which blue oak and digger pine
in usual scattering habit are the most conspicuous
indicators. We camped in the middle of the
yellow pine and black oak woods but the tract is
so restricted that we could hear owl in
all directions, and furthermore the birds of the
surrounding "(unknown2)" cross or infiltrate, so
that, as far as I can judge from the birdlife,
there is no distinct transition aspect to the animal life here.