Phleger Estate, Regional park in San Mateo County, California.

Phleger Estate is a park in San Mateo County, California, outside Woodside and adjacent to Huddart County Park, on the eastern slope of Kings Mountain between Cañada Road and Skyline Boulevard. It lies west of Cañada Road and east of Skyline Boulevard, between Huddart Park to the south and Filoli to the north. The park covers 1,084 acres of second-growth redwoods and oak woodlands, crossed by the south fork of Laguna Creek and by three minor tributaries that flow into West Union Creek.

Herman and Mary Elena Phleger began buying this forested watershed land in 1937 and used it as a private estate for decades. The property was later transferred to conservation and became a regional park open to the public.

The Lamchin, an Ohlone tribe, had four villages, Cachanigtac, Guloisnistac, Oromstac and Supichon, when the Portolà expedition passed through the Cañada de San Francisco in 1769. Between 1784 and 1793 the padres moved them to Mission San Francisco de Asís. Cañada Road, laid out in 1862 by Captain John Greer, follows that early route.

The trails cross uneven terrain with noticeable changes in elevation, so sturdy footwear is a good idea before heading in. The park is most easily reached by car, as public transport options in this area are limited.

Scattered through the forest are old redwood stumps and the remains of steam-powered sawmills that operated here during the heavy logging period of the 1800s. These leftovers reveal how much of the original forest was cut before the land was eventually set aside for protection.