HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems
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HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems |
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Black Star Canyon This canyon, with a relatively steep gradient and, in
portions, steep sides, supports excellent examples of chaparral and coastal sage
scrub communities. In the chaparral
chamise, Adenostoma fasciculatum, is the dominant, with Arctostaphylos spp. and
Ceanothus spp. present, among others. The
coastal sage scrub includes California sagebrush, Artemisia californica,
California buckwheat, Eriogonum fasciculatum, several sages, Salvia spp., and
Yucca whipplei. Animal life is typical of the Santa Ana Mountains. Geologically, most of the area is composed of marine
sedimentaries or metasedimentaries, including sandstone, shale and some coal.
The ages of the various rock range from the Eocene Silverado Formation,
which is found near the mouth of the canyon, to the Jurassic Bedford Formation.
There are some mesozoic metavolcanics in the upper reaches. Several intermittent streams are found in the area. Integrity: A
dirt road, several buildings, a power-line and, near the mouth, a coal mine are
present. There is a sand and gravel operation on the floor of the canyon.
A portion of the area is slated to be acquired as a regional park in the
future. The vegetation of the slopes
is virtually undisturbed. Use: Research,
educational, observational, in public portion.
Remainder, private. August 1976
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