Welcome to Rancho San Antonio County Park, one of Santa Clara County's most popular parks. Rancho San Antonio County Park is leased by the County of Santa Clara Parks and Recreation Department to Midpeninsula Regional Open Space District (MROSD). This 165 acre County Park, combined with the adjacent 2,135 Midpeninsula Regional Open Space Preserve (MROSD), provides 2,300 acres of trails and other recreational features. Through a lease agreement, MROSD now manages the entire park
