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Map Satellite Indiana Summit preserves a good stand of a Jeffrey pine, Pinus jeffreyi, forest growing in the rain shadow of the Sierra Nevada. In addition to the Jeffrey pine, lodgepole pine, Pinus contorta ssp. murrayana, and white fir, Abies concolor, are present. Within the pine forest, antelope bush, Purshia tridentata, predominates in the understory.
Noteworthy animal occurrences in the area are the occasional large populations of the pandora moth, Coloradia pandora, and the brown day moth, Pseudohazis eglanteria. The former often appeared in such numbers that the Paiutes gathered the larvae for food.
There are two intermittent creeks in the area.
Geologically, the area is underlain by Pleistocene rhyolite, which is seen in the outcrops. The soil is pumice.
Integrity: The area was established as a Research Natural Area in 1932, the first in the State, and is virtually undisturbed.
Use: Research, educational.
February 1980
Inventory of California Natural Areas
Revision © 2009 Steven Louis Hartman
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