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HARTMAN MULTIMEDIA
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Old Woman Mountains One of the high ranges on the Mojave block, this is an
area of spectacular granitic formations. The
rocks include Pre-Cambrian granitics and gneisses as well as other igneous and
metamorphics, with an intrusion of pre-Cenozoic granitics in the middle portion
of the range. Several plant communities are found in the mountains,
including the creosote bush scrub in which blackbush, Coleogyne ramosissima,
and Mexican tea, Ephedra sp., are common. Higher
up the slopes, above 1,200 meters (4,000 feet), there is a rather sparse pinyon-juniper
woodland with pinyon, Pinus monophylla, and Utah juniper, Juniperus
osteosperma. The woodland has a relatively high concentration of shrubs.
Here, the pinyon woodland begins at an elevation several hundred meters
lower than it does in the mountains 200 kilometers (125 miles) further north. A number of desert and desert-mountain animal species
are present, including the Mojave rattlesnake, Crotalus scutulatus, desert
tortoise, Gopherus agassizi, chuckwalla, Sauromalus obesus, bighorn,
Ovis canadensis, and mountain lion, Felis concolor. Immediately to the north of the mountains the wash
contains Miocene mammalian fossils. There
are sites of archaeological interest in the area. Integrity: Numerous mines, some jeep trails and a few
buildings are scattered through the mountains; otherwise the area is virtually
undisturbed. December 1976
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