HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems
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HARTMAN MULTIMEDIA
Nature Based Multimedia Information Systems |
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Silverado Canyon While heavily populated, this canyon still supports some
riparian vegetation and a Southern oak woodland. Most of the hillsides are
covered with chaparral, with Coulter pine, Pinus coulteri, on the northern
flanks. Within the canyon is the type locality for the Holz
shale, siltstone, sandstone and conglomerate, members of the Ladd formation
dating to the upper Cretaceous. It is rich in marine shallow-water fossils such
as Trigonarca excavata, Trigonarca californica, Schloenbachia knighteni and
Schloenbachia siskiyouensis. Integrity: The
area is heavily populated, and the fossil beds have been partially excavated. Use: Private March 1977
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