Skyline Ridge Open Space Preserve

Los Trancos Open Space Preserve is a 274-acre (1.11 km2) open space preserve, located in San Mateo and Santa Clara Counties, California, near Los Altos Hills, California. The preserve contains about 5 miles (8 km) of hiking trails, of which 2.1 miles (3.4 km) are open to equestrians, and none are open to bicycles. The area was once a part of a 13,300 acre (53.8 km2) rancho. The preserve's acreage was purchased by state senator Louis Oneal in the early 1900s, who raised horses there. It was sold to a developer in the 1950s. Power and water lines were run to the property in the 1960s, but development was abandoned when the city of Palo Alto discovered the high cost of providing city services to the area. The preserve was acquired by the Midpeninsula Regional Open Space District in 1976. While the preserve is relatively small compared to other preserves and parks in the area, it has one notable feature: about one mile (1.5 km) of the San Andreas Fault runs underneath it. Several series of markers throughout the preserve indicate where the ground has broken during various earthquakes. Additionally, a 1.5-mile (2.4 km) trail follows the main break caused by the 1906 San Francisco earthquake. This trail includes several interpretive stations that point out various quake-caused features and phenomenon. Guided "quake walks" are held about once a month. Just northwest of Page Mill Road, the preserve protects the headwaters of Los Trancos Creek, a tributary of San Francisquito Creek.

Lambert Creek is a tributary of Peters Creek in San Mateo County, California in the United States.

Monte Bello Open Space Preserve is a 3,133-acre (12.68 km2) open space preserve, located near Palo Alto in the Santa Cruz Mountains, in San Mateo and Santa Clara Counties, California, United States. The preserve encompasses the upper Stevens Creek watershed in the valley between Monte Bello Ridge and Skyline Ridge. "Monte Bello" means "beautiful mountain" in Italian, and refers to Black Mountain which is the highest part of Montebello Ridge. The straight valley of upper Stevens Creek is also the rift valley of the San Andreas Fault.

The 1838 San Andreas earthquake is believed to be a rupture along the northern part of the San Andreas Fault in June 1838. It affected approximately 100 km (62 miles) of the fault, from the San Francisco Peninsula to the Santa Cruz Mountains. It was a strong earthquake, with an estimated moment magnitude of 6.8 to 7.2, making it one of the largest known earthquakes in California. The region was lightly populated at the time, although structural damage was reported in San Francisco, Oakland, and Monterey. It is unknown whether there were fatalities. Based on geological sampling, the fault created approximately 1.5 meters (5.0 feet) of slip.For years, another large earthquake was said to have occurred two years earlier on June 10, 1836, along the Hayward fault; however, this is now believed to be referring to the 1838 San Andreas earthquake. There is no evidence that a large earthquake hit the region in 1836.

Black Mountain is a summit on Monte Bello Ridge in the Santa Cruz Mountains of west Santa Clara County, California, south of Los Altos and Los Altos Hills, and west of Cupertino; it is within the Palo Alto city limits though not near the developed part of the city. It is located on the border between Rancho San Antonio Open Space Preserve and Monte Bello Open Space Preserve, with the summit located in the former. Early Spanish explorers commonly named tree- or chaparral-covered summits which look black in the distance Loma Prieta, from the Spanish (loma-hill, prieta-dark). The Spanish also called the middle portion of the Santa Cruz Mountains the Sierra Morena meaning (morena-brunette, sierra-mountain range), extending from Half Moon Bay Road (California State Route 92) south to a gap at Lexington Reservoir, and which includes a summit called Sierra Morena. There are over 100 "Black Mountains" in California.

Long Ridge is a hill located in the Santa Cruz Mountains in the San Francisco Bay Area, California. The hill rises to an elevation of about 2,600 feet (792 m) on private property near Highway 35 and the Santa Clara-San Mateo county line. The hill is the highest point in San Mateo County. A hill to the northeast of Long Ridge rises to 2,566 feet (782 m). Some snow falls on the mountain during the winter.The Long Ridge Open Space Preserve is named for this ridge.

KFJC (89.7 FM) is a volunteer-run non-commercial college radio station in Los Altos Hills, California, at Foothill College, using a variety radio format that features a broad spectrum of music styles and public affairs programming. KFJC's over-the-air broadcast is 24/7 and can be heard within the southern San Francisco Bay Area. KFJC's mission is to be a conduit for new and interesting audio art and information. KFJC's music programming is largely oriented to recent material from many genres. Most programs must play at least 35% (by song count) tracks from material added in the last 8 weeks. The station is licensed to the trustees of the Foothill-De Anza Community College District and operated as a teaching laboratory for the Fine Arts and Communications Department of Foothill College. As a community radio station, the vast majority of KFJC's small operating budget is raised during their annual fundraiser held each October, which is supplemented by other community events such as penny-pitches, film festivals, and the like.KFJC's 300-watt transmitter is located on Black Mountain, in the Monte Bello Open Space Preserve, south of Los Altos, California.

Russian Ridge Open Space Preserve is a regional park located in the Santa Cruz Mountains in San Mateo County, California along the San Francisco Peninsula. Its 3,137 acres (1,269 ha) and 10.4 miles (16.7 km) of trails are managed by the Midpeninsula Regional Open Space District.

Hidden Villa is a United States nonprofit educational organization teaching programs on environmental and multicultural awareness. In 1924, Frank and Josephine Duveneck founded this working organic farm and wilderness area on land comprising the upper Adobe Creek watershed on the foothills of Black Mountain in Los Altos Hills, California, part of the Santa Cruz Mountains. Hidden Villa is important historically as the site of the West's first American youth hostel and the nation's first multicultural children's summer camp.

Foothills Park is a 1,400-acre (570 ha) park and nature preserve in the Santa Cruz Mountains of California, United States, within the city of Palo Alto. From 1969 until 2020, only residents or city employees of Palo Alto and their guests had lawful access to it, a restriction that has sparked "decades-long" controversy and a 2020 ACLU lawsuit. The park was opened to the general public on December 17, 2020.

Foothills Open Space Preserve is a 212-acre open space preserve on Page Mill Road in Palo Alto, California. The land for the preserve was gifted to the Midpeninsula Regional Open Space District in 1974. The preserve's only trail is .4 miles and leads to a hilltop with views of the San Francisco Bay Area.

Long Ridge Open Space Preserve is a 2,035-acre (824 ha) open space preserve along Long Ridge in the Santa Cruz Mountains.