Memorial Park, Regional park in San Mateo County, California.

Memorial Park is a 673-acre county park in Loma Mar, San Mateo County, California. It preserves old-growth redwoods in Harrison Canyon, with eight miles of hiking trails, camping areas, picnic facilities, a visitor center, a camp store, a creek swimming area, and campfire programs. Pescadero Creek runs through the park, joined by Bloomquist, Hoffman, McCormick, and Peterson Creeks.

The area was Camp Eden, an old-growth redwood grove, until 1923, when school superintendent Roy W. Cloud urged its purchase from a lumber company. The county bought 314 acres for $70,000 that year. At the July 4, 1924 dedication, 52 redwoods in Legion Flat were named for county men killed in World War I, with bronze plaques added later by Boy Scouts.

The park's name comes from the 52 redwoods in Legion Flat named on July 4, 1924, for San Mateo County men who died in World War I; local Boy Scouts later attached bronze plaques to each tree. The camp store and visitor center serve campers, and ranger-led campfire programs run in summer.

The park provides camping facilities for groups of different sizes as well as day-use areas with picnic spots and grilling options throughout the grounds. Most trails are well-marked, but carrying a map is wise and visitors should watch for wet conditions, especially during the damper months.

Memorial Park's redwoods were saved in 1923 when school superintendent Roy W. Cloud warned the county that a lumber company had just bought Camp Eden and planned to log it. The county paid $70,000 for 314 acres. At the July 4, 1924 dedication, the names of 52 local men killed in World War I were read aloud, each naming a redwood in Legion Flat; Boy Scouts later fixed bronze plaques to the trees.