Mountain House, San Joaquin County, California

Mountain House (formerly, Zimmerman's and Zimmerman's Mountain House) was a historic waystop for forty-niners halfway from San Francisco to the Sierra Nevada gold country. Today it is an unincorporated community in Alameda County, California, United States. It is located 12 miles (19 km) east-northeast of Livermore, and 6 miles (9.7 km) east of the Altamont Pass, historically the Livermore Pass, at an altitude of 207 feet (63 m), between the California Aqueduct and the Delta-Mendota Canal. San Joaquin County's Mountain House borrowed the name of the historic Mountain House and is located two miles (3 km) to the northeast further downstream on Mountain House Creek.

The Altamont Speedway Free Festival was a counterculture rock concert in the United States, held on Saturday, December 6, 1969, at the Altamont Speedway outside of Tracy, California. Approximately 300,000 attended the concert, with some anticipating that it would be a "Woodstock West". The Woodstock festival had taken place in Bethel, New York, in mid-August, almost four months earlier. The event is remembered for its use of Hells Angels as security and its significant violence, including the stabbing death of Meredith Hunter and three accidental deaths: two from a hit-and-run car accident, and one from an LSD-induced drowning in an irrigation canal. Scores were injured, numerous cars were stolen (and subsequently abandoned), and there was extensive property damage.The concert featured performances (in order of appearance) by Santana, Jefferson Airplane, the Flying Burrito Brothers, and Crosby, Stills, Nash & Young (CSNY), with the Rolling Stones taking the stage as the final act. The Grateful Dead were also scheduled to perform after CSNY, but shortly before their scheduled appearance, they chose not to due to the increasing violence at the venue. "That's the way things went at Altamont—so badly that the Grateful Dead, the prime organizers and movers of the festival, didn't even get to play," wrote staff at Rolling Stone magazine in a detailed narrative on the event, terming it, in an additional follow-up piece, "rock and roll's all-time worst day, December 6th, a day when everything went perfectly wrong."Filmmakers Albert and David Maysles shot footage of the event and incorporated it into the 1970 documentary film titled Gimme Shelter.

Altamont Raceway Park is a motorsports race track in the western United States, located in northern California, west of Tracy. It opened on July 22, 1966, and operated under the names Altamont Speedway, Altamont Raceway, Altamont Motorsports Park, Altamont Raceway Park and Arena, and Bernal Memorial Raceway. After 42 years of operation, the speedway closed in October 2008; the site is just south of the junction of Interstates 205 and 580.

Hammer Island is a small island in the Sacramento–San Joaquin River Delta, in Contra Costa County, California, originally named Santos Island, it was changed to Hammer Island after Hans Hammer purchased the island from Mr. Santos in 1939. Its coordinates are 37°48′59″N 121°33′25″W,; the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981, and it appears on a 1978 USGS map.

The C.W. Bill Jones Pumping Plant (formerly the Tracy Pumping Plant) located 9 miles (14 km) northwest of Tracy, California, was constructed between 1947 and 1951, and is a key component of the Central Valley Project. The Delta Cross Channel intercepts Sacramento River water as it travels westwards towards Suisun Bay and diverts it south through a series of man-made channels, the Mokelumne River, and other natural sloughs, marshes and distributaries. From there, the water travels to the C.W. Bill Jones Pumping Plant, which raises water into the Delta-Mendota Canal, which in turn travels 117 miles (188 km) southwards to Mendota Pool on the San Joaquin River, supplying water to other CVP reservoirs about midway. The Tracy Fish Collection Facility exists at the entrance of the pump plant in order to catch fish that would otherwise end up in the Delta-Mendota Canal.The Jones Pumping Plant provides water service to 32 water districts within the western San Joaquin Valley, San Benito and Santa Clara counties. Of the approximate 3,000,000 acre-feet (3.7×109 m3) of water distributed, 2,500,000 acre-feet (3.1×109 m3) is delivered to farms, 200,000 acre-feet (250,000,000 m3) to urban areas, including Tracy and cities with in the Santa Clara Valley Water District, and 300,000 acre-feet (370,000,000 m3) for wildlife refuges.

The Bethany Reservoir is located 8 miles (13 km) northeast of Livermore, California, USA, on the California Aqueduct. It serves as the forebay for the South Bay Pumping Plant that feeds the South Bay Aqueduct.

Clifton Court Forebay is a reservoir in the San Joaquin River Delta region of eastern Contra Costa County, California, 17 mi (27 km) southwest of Stockton. The estuary region the forebay is located in is only 1m to 3m above mean sea level.

Midway is an unincorporated community in Alameda County, California, 6 miles (9.7 km) south-southeast of Altamont. It lies at an elevation of 358 feet (109 m). A post office operated in Midway from 1870 to 1918.

Bethany Reservoir State Recreation Area is a state park unit of California, United States, adjoining the Bethany Reservoir. It is located in Alameda County, near Livermore. Situated in the northernmost part of the San Joaquin Valley, Bethany Reservoir State Recreation Area is a popular place for water-oriented recreation, especially fishing and windsurfing. The reservoir stores water for a pumping plant on the California Aqueduct.

Union Island is a small island in the San Joaquin River delta, in California. It is part of San Joaquin County, and managed by Reclamation Districts 1 and 2. Its coordinates are 37.8374268°N 121.5155042°W / 37.8374268; -121.5155042 (Union Island).

The Byron-Bethany Irrigation District (BBID) is a special district serving the water needs of regions of Alameda, Contra Costa, and San Joaquin Counties in California. This area is about 30,000 acres (12,000 ha) and serves 160 agricultural customers, as well as residents of the all-inclusive Mountain House village community are served as well. Notable recipients of BBID's services in the area are The Patterson Pass Business Park, Prologis International Park of Commerce, and Cordes Ranch. The water comes from the Sacramento–San Joaquin River Delta and the Delta–Mendota Canal.

Coney Island is a small island in the San Joaquin River delta, in California. It is part of Contra Costa County, and managed by Reclamation District 2117. Its coordinates are 37.8457598°N 121.5493939°W / 37.8457598; -121.5493939. It appears on a 1978 United States Geological Survey map of the area.