Beauregard Creek

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.

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

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.

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.

Adobe Canyon is a valley and tributary stream of Del Puerto Creek in Stanislaus County, California. The mouth of Adobe Canyon is at its confluence with Del Puerto Canyon and Del Puerto Creek at an elevation of 1,319 feet (402 meters). The head of the valley and source of the stream is at 37°23′45″N 121°19′22″W at an elevation of 2,250 feet (690 meters) near the headwaters of Latta Creek.

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

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.

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).

The Coudé Auxiliary Telescope (CAT) is a coudé focus telescope located at the Lick Observatory near San Jose, California, south of Shane Dome, Tycho Brahe Peak. The Coudé Auxiliary Telescope, built in 1969, is a 0.6m (24-inch) reflecting telescope in a stationary position at a fixed focus. The CAT is generally used for observation of brighter stars, since it collects less light than the 120-inch Shane.

The Carnegie telescope (i.e. Carnegie double astrograph) is a twin 20-inch (510 mm) refractor telescope located at Lick Observatory in California, United States. The double telescope's construction began in the 1930s with a grant from the Carnegie institution, although it was not completed until the 1960s when a second lens was added. The telescope is not designed for visual observation, rather it has two lenses used for taking photographs for a specific wavelength recorded on a film emulsion. It was used for photographic sky surveys in the late 20th century, which were successfully completed. The overall goal of the telescope was to study the "problem of galactic rotation and proper motion.. "

The Automated Planet Finder (APF) Telescope a.k.a. Rocky Planet Finder, is a fully robotic 2.4-meter optical telescope at Lick Observatory, situated on the summit of Mount Hamilton, east of San Jose, California, USA. It is designed to search for extrasolar planets in the range of five to twenty times the mass of the Earth. The instrument will examine about 10 stars per night. Over the span of a decade, the telescope is expected to study 1,000 nearby stars for planets. Its estimated cost was $10 million. The total cost-to-completion of the APF project was $12.37 million. First light was originally scheduled for 2006, but delays in the construction of the major components of the telescope pushed this back to August 2013. It was commissioned in August 2013.The telescope uses high-precision radial velocity measurements to measure the gravitational reflex motion of nearby stars caused by the orbiting of planets. The design goal is to detect stellar motions as small as one meter per second, comparable to a slow walking speed. The main targets will be stars within about 100 light years of the Earth.Early tests show that the performance of the Ken and Gloria Levy Doppler Spectrometer is meeting the design goals. The spectrometer has high throughput and is meeting the design sensitivity of (1.0 m/s), similar to the radial velocity precision of HARPS and HIRES.