Adobe Canyon (Del Puerto Creek tributary)

Adobe Mountain is a peak with an elevation of 3,207 feet (977 meters) in the Diablo Range in Stanislaus County, California.

Red Mountain is a mountain summit on the divide of the Diablo Range in Santa Clara County, California. It lies at the northeastern edge of San Antonio Valley, along the border with Stanislaus County, California.

The community of San Antonio Valley, also called San Antonio or San Antone, is located along the Diablo Range in eastern Santa Clara County, California, United States. The locale is bordered by Alameda County to the north and Stanislaus County to the east. The sparsely populated area is located at the junction of San Antonio Valley Road, Mines Road, and Del Puerto Canyon Road. San Antonio Valley Road and Del Puerto Canyon Road are legislatively part of California State Route 130 but have not been adopted by Caltrans. The area includes the San Antonio Valley Ecological Reserve, a 3,282-acre nature preserve created by a Nature Conservancy purchase of land from local rancher, Keith Hurner, and known for its herd of tule elk.

Beauregard Creek is a stream located in the U.S. state of California. It is located in Santa Clara County.

Mount Boardman is located in the Diablo Range in California. The summit is near a point where Santa Clara, Alameda, Stanislaus, and San Joaquin counties meet. It was named for W. F. Boardman, the Alameda County surveyor between 1865 and 1869. There is a higher peak to the north which is unofficially called Boardman North and has an elevation of 3,629 feet (1,106 m). This north peak, unnamed on topographic maps, is located on the Alameda – San Joaquin county line, and is the highest point in San Joaquin County. Some snow falls on both peaks during the winter.

Mount Mocho is a summit in the Diablo Range, in Santa Clara County, California. It rises to an elevation 3,665 feet / 1,117 meters.

Blackbird Valley, earlier known as "Valle de Mocho", is a valley south of Mount Mocho in the Diablo Range in Santa Clara County, California. It lies at an elevation of 2,552 foot / 778 meters.

The Burnt Hills are a mountain range in Santa Clara County, California.

Mount Wallace is a summit in the Diablo Range, in Alameda County, California. Mount Wallace rises to and elevation of 3,091 feet (942 meters).

Diablo Range is an unincorporated census county division (CCD) located in the Diablo Mountains Range, on the eastern side of Santa Clara County, California.The area covers approximately 600 square miles (1,600 km2), much of it open space, and contains Anderson Lake, Bullhead, Calaveras, and Cherry Flat reservoirs, as well as the Anderson Lake County Park, Grant Ranch County Park, and Metcalf Motorcycle county park.The Henry W. Coe State Park and Pacheco State Park, the Sierra Vista Open Space, and Blue Oak Ranch Reserve preserves, along with the Mount Hamilton Lick Observatory, and the Ashrama retreat center are also located in the area. The region has a warm and dry Mediterranean climate. Although some agriculture exists, many ranches in the area are used for livestock grazing or hunting game. As of the 2010 US Census, the population was 1,508 residents of whom 55.2% were non-Hispanic white, 26.4% Hispanic, 12.7% Asian, and 5.7% of other races, with a median age of 42.6 years old. As of 2009, the median income was $91,977 and median home price $1,272,823.Most residents and businesses in the area use postal ZIP codes from neighboring cities of Livermore, Milpitas, San Jose, Morgan Hill, Gilroy, or Hollister. The telephone area codes are 408 and 669 (Santa Clara County), 209 (overlaps with Stanislaus County to the east), and 831 (overlaps with San Benito County to the south).

Del Puerto Canyon is the valley or canyon of Del Puerto Creek in Stanislaus County, California. The canyon mouth is at an elevation of 223 feet (68 meters). Its head is located at 37°23′51″N 121°27′26″W and is at an elevation of 2,800 feet (850 meters) on the south slope of Red Mountain.

The Tesla Fault can be found in the northeastern Diablo Range, California. This fault is only semi-active.