El Corte de Madera Open Space Preserve is a 2,908-acre (1,177 ha) open space preserve in San Mateo County, California.
The preserve contains over 34 miles of trails for bicycles, horses, and hiking. The preserve is popular for mountain biking.
A portion of the Bay Area Ridge Trail runs through the park.
In 1953, BCPA Flight 304 crashed in what is now the preserve, killing all on board. An historical marker in the park commemorates the site.
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