PRESIDIO OF SAN FRANCISCO - View this location on map Formally established on September 17, 1776, the San Francisco Presidio has been used as a military headquarters by Spain, Mexico, and the United States. It was a major command post during the Mexican War, Civil War, Spanish-American War, World Wars I and II, and the Korean War, and remains a symbol of United States authority in the Pacific. f Funston Ave and Lincoln Blvd, San Francisco, California Historical, Active, Kids Presidio of San Francisco - View this location on map The Presidio has served as a military reservation from its establishment in 1776 as Spain's northern-most outpost of colonial power in the New World. It was one of the longest-garrisoned posts in the country and the oldest installation in the American West. It played a key role in Spain's exploration and settlement of the borderlands, Mexico's subsequent control of the region from Texas to Alta California, and the United States' involvement not only in frontier expansion, but also in all major conflicts since the Mexican-American War of 1846-48. 35 Keyes Ave, San Francisco, California Historical

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