Amador Valley is a valley in eastern Alameda County, California and is the location of the cities of Dublin and Pleasanton . Part of Tri-Valley , the valley is bounded by the foothills of the Diablo Range on the north and south, Pleasanton Ridge to the west, and Livermore Valley to the east.
4-591: Watercourses draining into the Amador Valley include South San Ramon Creek , Tassajara Creek , Arroyo Mocho , Arroyo Valle , and Arroyo Las Positas , as well as runoff from Pleasanton Ridge . These waters drain south through Arroyo de la Laguna to Alameda Creek , ultimately ending up in San Francisco Bay . Amador Valley was once marshland characterized by tules and willow trees , with Tulare Lake at its center. Euro-American development in
8-777: Is a 9.3-mile-long (15.0 km) southward-flowing stream in Alameda County and southern Contra Costa County , in the East Bay region of northern California . The creek is a tributary to Arroyo de la Laguna , flowing in the western Livermore Valley through Dublin and Pleasanton . South San Ramon Creek drains the land area generally lying above the Bishop Subbasin of the Livermore Valley Groundwater Basin. The Bishop Subbasin comprises 1,666 acres (7 km ) of valley lands in
12-467: The 19th century reduced the marsh to Arroyo de la Laguna . The valley was named after José María Amador , a local ranchero who settled in the nearby Rancho San Ramon in 1834. 37°40′59″N 121°52′26″W / 37.68306°N 121.87389°W / 37.68306; -121.87389 This Alameda County, California –related article is a stub . You can help Misplaced Pages by expanding it . South San Ramon Creek South San Ramon Creek
16-665: The far northwestern portion of Livermore Valley Ground Water Basin. The Bishop Subbasin lies entirely within Contra Costa County, is drained by, and is a portion of that area locally designated as San Ramon Valley . The subbasin is bounded on the east and west by rolling hills composed of sediments of the Tassajara Formation . The creek is being actively protected as of 2007, by the city of San Ramon and other entities to preserve riparian zone habitat . The public Iron Horse Regional Trail runs along
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