Bolinas Ridge

The Sidney B. Cushing Memorial Amphitheatre, also known as the Cushing Memorial Amphitheatre or simply the Mountain Theatre, is a 4,000-seat open-air venue in Mount Tamalpais State Park, in Marin County, California, United States.

The KFRC Fantasy Fair and Magic Mountain Music Festival was an event held June 10 and 11, 1967, at the 4,000-seat Sidney B. Cushing Memorial Amphitheatre high on the south face of Mount Tamalpais in Marin County, California. Although 20,000 tickets were reported to have been sold for the event, as many as 40,000 people may have actually attended the two-day concert, which was the first of a series of San Francisco–area cultural events known as the Summer of Love. The Fantasy Fair was influenced by the popular Renaissance Pleasure Faire and became a prototype for large scale multi-act outdoor rock music events now known as rock festivals.

The Mountain Play Association is a 501(c)3 organization responsible for the production of theatrical events at the Sidney B. Cushing Amphitheater on Mount Tamalpais in Marin County, California. The stone amphitheater, named for the owner of the railroad company which constructed the Mount Tamalpais Scenic Railway, is at an elevation of 2,000 feet and has 4,000 seats. The organization was founded in 1913, and is a member of Theatre Bay Area and the North Bay Theatre Group. John C. Catlin became the first president of the Mountain Play Association. He financed the first play in the Cushing Memorial Amphitheatre in 1913.The Mountain Play presents one musical a year, in May and June. In 2014, they presented South Pacific, from May 18 through June 15. Past productions have included Hairspray, Fiddler on the Roof, and Hair. The mission statement of the Mountain Play Association reads, "The Mountain Play Association’s mission is to produce an annual, spectacular, outdoor theatrical experience that nurtures an appreciation of Mt. Tamalpais, involves and strengthens the community, and builds on decades of tradition."

The Newport Pop Festival, held in Costa Mesa, California, on August 3–4, 1968, was the first music concert ever to have more than 100,000 paid attendees. Its sequel, billed as Newport 69, was held in Northridge, California, on June 20–22, 1969, and had a total attendance estimated at 200,000.

Stinson Beach is an unincorporated community and census-designated place (CDP) in Marin County, California, on the west coast of the United States. Stinson Beach is located 2.5 miles (4 km) east-southeast of Bolinas, at an elevation of 26 feet (8 m). The population of the Stinson Beach CDP was 541 at the 2020 census.Stinson Beach is about a 35-minute drive from the Golden Gate Bridge on California State Route 1 (the Shoreline Highway). It is near important attractions such as Muir Woods National Monument, Muir Beach, and Mount Tamalpais. It has a long beach, and the cold water produces fog throughout the year.Stinson Beach is a popular day trip for people in the San Francisco Bay Area and for tourists visiting Northern California. Although most visitors arrive by private car, Stinson Beach is linked to Marin City by a daily bus service, and the network of hiking trails around Mount Tamalpais also reaches the town. The beach is one of the cleanest in the state, and sandy, unlike the rockier neighboring beach in Bolinas.

Mount Tamalpais State Park is a California state park, located in Marin County, California. The primary feature of the park is the 2,571 feet (784 m) Mount Tamalpais. The park contains mostly redwood and oak forests. The mountain itself covers around 25,000 acres (100 km2). There are about 60 miles (97 km) of hiking trails, which are connected to a larger, 200 miles (320 km) network of trails in neighboring public lands. The park received 564,000 visitors in as of 2003. Muir Woods National Monument is surrounded by the state park. From the peak of the mountain, visitors can see up to 25 miles (40 km), in a view that encompasses San Francisco, most of the North and East Bay, and the Farallon Islands. Occasionally, the Sierra Nevada are visible, 125 miles (201 km) away.

The Marin Hills are a series of steep high ridges and peaks in southern Marin County. They are a part of the long Pacific Coast Ranges mountain system. The centerpoint of these hills is the 2,571 foot (784 m) Mount Tamalpais near Mill Valley. The hills are bordered to the north by the Santa Rosa Plain and Laguna de Santa Rosa; to the east by San Pablo Bay, the northern arm of San Francisco Bay; to the south by Golden Gate Strait; and to the west by the San Andreas Fault, running through Tomales Bay, Olema Valley, Bolinas Lagoon, and Stinson Beach. Parts of the hills are protected for their scenic beauty by Mount Tamalpais State Park and the Golden Gate National Recreation Area. The many ridges and peaks of these hills form a dramatic backdrop to the Golden Gate Bridge, the San Francisco skyline, and several towns around Richardson Bay when viewed from the south.

Mount Tamalpais (locally referred to as Mt. Tam) and the surrounding areas in Marin County, California are recognized as the birthplace of the modern mountain biking industry. Other Northern California hill-adjacent suburban areas had small cohorts.

Stinson Gulch is a valley in Marin County, California, United States which is associated with a small stream. The stream descends the western slope of the Bolinas Ridge, crosses State Route 1 just north of Stinson Beach, California, and drains into the southern tip of Bolinas Lagoon.Most of Stinson Gulch is included in Mount Tamalpais State Park. The gulch and the groundwater associated with it supply most of the water for the town of Stinson Beach.

Gull Rock is a rock formation and a small rocky island in Marin County, in the U.S. state of California. It lies in the Pacific Ocean just offshore of the Golden Gate National Recreation Area.

Alpine Lake is a reservoir in Marin County, California. Formed by Alpine Dam, it provides water to the Marin Municipal Water District. Below the dam lies Kent Lake. Alpine Lake is to the west of Bon Tempe Lake. Fishing is allowed, and Largemouth Bass, Smallmouth Bass, and trout can be caught. Boats and wading are not allowed on the lake.

McKinnan Gulch is a valley in Marin County, California, United States. It contains a small stream which descends the western slope of the Bolinas Ridge and drains into Bolinas Lagoon.Near the head of the gulch is an ore vein (reported in 1955) containing chalcopyrite, galena, pyrite, and calcite.