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The Santa Rosa Plateau Ecological Reserve was assembled in several stages; two parcels, comprising 3,100 acres (13 km 2), were purchased by The Nature Conservancy in 1984. The intervening parcels were purchased in the 1990s by the State of California , the Riverside County Regional Park and Open-Space District , [ 3 ] and the Metropolitan Water ...
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Southeast of the Elsinore Mountains is the Santa Rosa Plateau, named for the Rancho Santa Rosa that once encompassed it. At the south end of the plateau there is a steep escarpment from the basalt capped mesas that line it, that descends from about 500 feet at Mesa de Burro to Sandia Creek on the east to about 1800 feet at Avenaloca Mesa to De ...
The oldest rocks in California date back 1.8 billion years to the Proterozoic and are found in the San Gabriel Mountains, San Bernardino Mountains, and Mojave Desert.The rocks of eastern California formed a shallow continental shelf, with massive deposition of limestone during the Paleozoic, and sediments from this time are common in the Sierra Nevada, Klamath Mountains and eastern Transverse ...
The Santa Rosa Wilderness is a 72,259-acre (292.42 km 2) wilderness area in Southern California, in the Santa Rosa Mountains of Riverside and San Diego counties, California. It is in the Colorado Desert section of the Sonoran Desert , above the Coachella Valley and Lower Colorado River Valley regions in a Peninsular Range , between La Quinta to ...
Santa Rosa Island (Spanish: Isla de Santa Rosa; Cruzeño Chumash: Wi'ma) [1] is the second largest of the Channel Islands of California at 53,195 acres (215.27 km 2 or 83.118 sq mi). Santa Rosa is located about 26 miles (42 km) off the coast of Santa Barbara, California in Santa Barbara County and is part of Channel Islands National Park .
For example, tenajas at the Santa Rosa Plateau in southern California allow western pond turtles, California newts and red-legged frogs to survive through dry summer months. [ 1 ] During prolonged dry spells, deep tinajas may trap desert animals who cannot climb out due to the smooth walls.
Originally, the Russian River was one of several rivers draining westward from the Mayacamas Mountains through the Mendocino Plateau to the sea, a region lifted up by tectonic forces. The Navarro River drained from the Cobb Mountain area, while the Russian River drained from the Mt. St. Helena area. Being at a lower elevation, the Russian River ...