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Las Trampas Ridge
Las Trampas Ridge is an 1,827 ft (557 m) ridge in western Contra Costa County, California, in the San Francisco Bay Area. It comprises the western side of the San Ramon Valley. Etymology ''Las Trampas'' is Spanish for ''the traps'' or ''the snares.'' This name was given to the area by Spanish and later Mexican settlers who observed the indigenous Saclan peoples' method of trapping herds of Tule elk and deer using the steep canyons on the ridge. Geography Las Trampas Ridge is a prominent feature in the geography of the East Bay region. It provides a backdrop for the towns of San Ramon, California, San Ramon, Alamo, California, Alamo and Danville, California. The ridge is paralleled by Interstate 680 (California), Interstate 680 between Walnut Creek, California, Walnut Creek and San Ramon. It ascends north-northwest for approximately 8 miles from San Ramon, California to its terminus at Las Trampas Peak just south of the city of Lafayette, California, where it tapers off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contra Costa County, California
Contra Costa County (; ''Contra Costa'', Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States census, the population was 1,165,927. The county seat is Martinez. It occupies the northern portion of the East Bay region of the San Francisco Bay Area and is primarily suburban. The county's name refers to its position on the other side of the bay from San Francisco. Contra Costa County is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area. History Pre-human In prehistoric times, particularly the Miocene epoch, portions of the landforms now in the area (then marshy and grassy savanna) were populated by a wide range of now extinct mammals, known in modern times by the fossil remains excavated in the southern part of the county. In the northern part of the county, significant coal and sand deposits were formed in even earlier geologic er ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
