Alpine Creek

San Gregorio Creek (Spanish for: Saint Gregory) is a river in San Mateo County, California. Its tributaries originate on the western ridges of the Santa Cruz Mountains whence it courses southwest through steep forested canyons. The San Gregorio Creek mainstem begins at the confluence of Alpine and La Honda Creeks, whence it flows 12 miles (19 km) through rolling grasslands and pasturelands until it meets the Pacific Ocean at San Gregorio State Beach. It traverses the small unincorporated communities of La Honda, San Gregorio, Redwood Terrace and Sky Londa.

La Honda Creek is a 7 miles (11 km) long stream on the Pacific slope of the Santa Cruz Mountains and is a tributary of San Gregorio Creek. From its source (37°23′32″N 122°17′30″W) near Bear Gulch Road and Skyline Boulevard (CA 35) in San Mateo County, California, La Honda Creek's water flow south to its confluence with Alpine Creek to form San Gregorio Creek in La Honda, and thence to the Pacific Ocean.

La Honda (Spanish for "The Sling") is a census-designated place (CDP) in southern San Mateo County, California, United States. The population was 979 at the 2020 census. It is located in the Santa Cruz Mountains between the Santa Clara Valley and the Pacific coast of California. La Honda is near the La Honda Creek Open Space Preserve and State Route 84 on the ocean side of the Coastal Range. The ZIP Code for La Honda is 94020 and the area code is 650. Land-line numbers in the La Honda telephone exchange follow the pattern 747-xxxx while wired telephones in and around the Middleton Tract (along Portola State Park Road) work out of the Los Altos exchange with 94x-xxxx numbers. Per the U.S. Geological Survey, Lahonda is a historic variant of the modern spelling.

Old Store at La Honda sat at the Northwest corner of CA Highway 84 at La Honda Road and Sears Ranch Road, this location is now listed as 8865 La Honda Road, La Honda, San Mateo County, California. This is a California Historical Landmarks in San Mateo County since 1939. A store is open and functions as a neighborhood market at this location, under a different name and ownership - nothing is left of the original store.

Woodhams Creek is a small river in San Mateo County, California and is a tributary of San Gregorio Creek. It flows about 2 miles (3 km) from its source on Langley Hill to its confluence with La Honda Creek, in the town of La Honda.

Sam McDonald Park, located between La Honda and Loma Mar in San Mateo County, California, United States, is operated by the San Mateo County Department of Parks. The park is 867 acres (3.51 km2) of redwood forest, mixed woods and open meadows. Trails climb up to a ridgeline with views across the Pescadero Creek valley, Butano Ridge, and the Pacific Ocean. The park includes Heritage Grove and borders Pescadero Creek County Park through which it connects to Memorial County Park, Portola Redwoods State Park, and Big Basin Redwoods State Park (via a trail easement across private lands). Horseback riding is popular here, and many use Jack Brook Horse Camp.

Langley Creek is a small river in San Mateo County, California and a tributary to La Honda Creek, which in turn is a tributary to San Gregorio Creek. It flows about 2 miles (3 km) from its source on Langley Hill to its confluence with La Honda Creek, a short distance upstream from the town of La Honda.

Camp Jones Gulch is a YMCA summer camp in La Honda, California, in the Santa Cruz Mountains of the San Francisco Bay Area. It was founded in 1934 and encompasses 927 acres (375 ha) of redwood forests and meadows. During the summer, the YMCA of San Francisco operates overnight youth and family camps, and during the school year, the camp hosts retreats, in addition to weekly environmental education field trips operating as San Mateo Outdoor Education. From 1956 to 2020, it was also the home of San Joaquin County Outdoor Education.

Harrington Creek is a small river in San Mateo County, California and is a tributary of San Gregorio Creek.

Mindego Creek is a small river in San Mateo County, California and is a tributary of San Gregorio Creek.

Woodruff Creek is a small river in San Mateo County, California and is a tributary to La Honda Creek, which in turn is a tributary to San Gregorio Creek.

Rodgers Gulch is a valley in San Mateo County, California. It contains a small stream which is a tributary of San Gregorio Creek. The stream flows about 1.5 miles (2 km) from its source on Mindego Hill to its confluence with Alpine Creek, just east (upstream) of the boundary of the Heritage Grove Redwood Preserve.