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San Gregorio Creek

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Source: SieBot

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San Gregorio Creek is a river in San Mateo County, California. Its tributaries originate on the western ridges of the Santa Cruz Mountains whence it courses southwest through steep forested canyons. The San Gregorio Creek mainstem begins at the confluence of Alpine and La Honda Creeks, whence it flows 12 miles through rolling grasslands and pasturelands until it meets the Pacific Ocean at San Gregorio State Beach. It traverses the small unincorporated communities of La Honda, San Gregorio, Redwood Terrace and Sky Londa.
San Gregorio Creek is historically significant as the campsite for Spanish explorer Gaspar de Portolà's expedition from October 24–27, 1769, when he overshot his goal and went on to Pacifica where he ascended Sweeney Ridge and discovered San Francisco Bay. The site is registered as California Historical Landmark 26. The creek was called Arroyo de San Gregorio in Spanish times and later, Arroyo Rodrigues in the 1850s.


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