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Redwood Regional Park
Redwood Regional Park is a park of the East Bay Regional Parks District (EBRPD) in the San Francisco Bay Area. It is located in the hills east of Oakland. The park contains the largest remaining natural stand of coast redwood found in the East Bay. Redwood forests are more commonly found closer to the coast where the air is cool and humid year-round. In the Bay Area, such forests are found in the Santa Cruz Mountains and the Marin Hills. The unique geographical circumstances of the redwood forest in Redwood Regional Park create coastal conditions. Winds funneled through the Golden Gate flow directly across the Bay and are channeled into the linear valley in which the Montclair District of Oakland is situated. This valley is also well-watered all year round and is protected from extremes of temperature and high winds.
Up to the middle of the 19th century, the bulk of the redwood forest lay in the linear valley, with extensions to the surrounding ridges. Early mariners used two particularly tall redwood trees along the ridges to help them navigate in San Francisco Bay, the site of which is registered as California Historical Landmark #962.〔() California State Parks Office of Historic Preservation〕 However, logging in the latter half of the 19th century wiped out the original trees, leaving only their stumps. A second logging occurred after the 1906 San Francisco earthquake. In this instance the second growth redwoods (approximately 50 years old) as well as the stumps from the first generation trees were logged.〔(), AlamedaInfo.com, Gary Lenhart. Retrieved June 4, 2013〕 The redwoods contained in today's regional park are third-growth trees, many of which are over 100 years old.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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