The Phleger Estate is a park in San Mateo County, California. The park is located outside the town of Woodside and adjacent to Huddart County Park. The park was acquired in 1991 by the Peninsula Open Space Trust (POST) for $25 million and is now part of the Golden Gate National Recreation Area (GGNRA).
The 1,084 acre parcel is located west of Cañada Road and east of Skyline Boulevard on the eastern slope of Kings Mountain (at 2,090 feet (640 m) the second highest point in San Mateo County) on the Sierra Morena portion of the Santa Cruz Mountains. The Phleger Estate lies between San Mateo County’s Huddart Park to the south and Filoli to the north on the San Francisco Peninsula. This area was once a portion of Rancho Cañada de Raymundo which was aggressively logged during the nineteenth century. After entering the estate from Cañada and Edgewood Roads, Phleger Road immediately crosses the south fork of Laguna Creek which flows north to Upper Crystal Springs Reservoir. Higher up the slope three minor tributaries flow into West Union Creek, which travels southeast to Adobe Corner in the town of Woodside where it joins Bear Gulch Creek, which in turn flows to San Francisquito Creek and ultimately, San Francisco Bay.
When the Spanish arrived on the San Francisco Peninsula in 1769, the land from Belmont south to Redwood City, and from the Bay into the foothills including Woodside, Huddart Park and the Phleger Estate was occupied by the Lamchin local tribe of the Ohlone people. This tribe was encountered by the Portolà expedition as it descended from Sweeney Ridge to San Francisquito Creek through what Portola called the Cañada de San Francisco (now traversed by Cañada Road). The padres spoke of the Lamchin as possessing four villages, Cachanigtac, Guloisnistac, Oromstac and Supichon, but moved them to Mission San Francisco de Asís between 1784 and 1793 for Christianization.