Vincent Grade/Acton station

Soledad Pass, elevation 3,209 ft (978 m), is a mountain pass in northern Los Angeles County, California. It is located at the highest point along Soledad Canyon, which winds between the Sierra Pelona Mountains to the northwest and the San Gabriel Mountains to the southeast. The pass provides a direct route between the Santa Clara River watershed and the Antelope Valley of the western Mojave Desert. The pass is also notable as the lowest crossing of the Great Basin Divide between the Sierra Nevada and the San Bernardino Mountains.

Alpine, more fully Alpine Springs and also called Harold, was an unincorporated community in Los Angeles County, California located 2 miles south of where Palmdale is now.The Trego Post Office was located at the Alpine Station stop on the Southern Pacific Railroad which stood at what is today the intersection of Sierra Highway and Barrel Springs Road (previously Fort Tejon Road). The Trego post office was in operation from July 1, 1884, until December 18, 1884, when the name was changed to Harold. The first Harold post office was established on December 19, 1890, and was discontinued on September 16, 1894. A second post office named Harold was in operation from July 13, 1895, until June 15, 1901, when the papers were moved to Palmdale.Alpine Station was mostly populated by railway employees, and Harold/Alpine dwindled as New Palmdale grew alongside it. Originally the major rail transport hub for Palmdale, Harold lost its railway depot to the latter in 1892, having shrunk at that point to a hotel-cum-saloon and a few houses. Similarly, the reservoir to the south of Palmdale, constructed in 1897 by the Antelope Valley Irrigation Company and known as the Alpine or Harold Reservoir, as well as Yuna Lake (now Lake Palmdale), lost its importance when Little Rock Creek river was dammed (by Little Rock Dam) in the 1920s, creating a reservoir with a greater capacity to serve Palmdale.Investors hoped to revive the area's fortunes and turn it into a resort; construction was started on the Alpine Springs Hotel and Sanatorium in 1908 on the west side of Sierra Highway. However, the construction was never finished. By 1926 only a few shacks and the Harold Square Deal Garage remained, and in the 21st century it is the site of the Alpine Springs Mobile Home Park.In addition to the mobile home park, some vestiges of the settlement remain in local names, including streets named Harold Second, Harold Third, Harold Beech, and Harold Ash.

Una Lake is a sag pond in Palmdale, Los Angeles County, California. It is in Antelope Valley, in the San Andreas Rift Zone at an elevation of 2,812 feet/857 meters.

Lake Palmdale is an artificial lake completed in 1924 along with the nearby Little Rock Reservoir created by Little Rock Dam. Its source of water is the California State Water Project and it is fed by the California Aqueduct. It is located in the city of Palmdale near the city's southern edge, in the small Anaverde Valley between the San Andreas Fault and the base of Mount Tenhi.

Acton (pronunciation) is an unincorporated census-designated place in Los Angeles County, California, near the Antelope Valley. According to the 2010 census, Acton had a population of 7,596. Acton is a small residential community located between the Sierra Pelona Mountains and the San Gabriel Mountains. It is off the Antelope Valley Freeway (Highway 14) south of Palmdale. Acton is roughly 20 miles (32 km) northeast of the San Fernando Valley, and 47 miles (76 km) north of downtown Los Angeles by highway. The town has a rural western theme which can be seen in its homes, commercial buildings and historical buildings, some of which date back to the late 1800s. The homes in the mountains around Acton have views of the valley below. In the valley are ranch style homes, often with equestrian facilities. While Acton is not a part of the Antelope Valley, it is grouped together with the Valley in the General Plan. Acton has a Metrolink commuter rail station on its border with Palmdale that is themed in an "old western" style and has been seen in various movies and commercials.

Palmdale High School is located in Palmdale, California and is part of the Antelope Valley Union High School District. About 4,000 students attend Palmdale High School in grades 9 through 12. Palmdale High School was founded in 1956.

Dry Town Water Park is a waterpark located in Palmdale, California that opens each year from the Memorial Day weekend in May through Labor Day in September. The park features a 35-foot tower structure that holds three waterslides with a three foot deep splashdown pool, a second tower structure that holds a four-lane racer slide, a 6,000 square foot children's water playground with three slides, spray features, and a giant overhead splash bucket, and a 925-foot lazy river that winds around the center of the park.

Palmdale is a city in northern Los Angeles County in the U.S. state of California. The city lies in the Antelope Valley of Southern California. The San Gabriel Mountains separate Palmdale from the Los Angeles Basin to the south. On August 24, 1962, Palmdale became the first city in Antelope Valley. Forty-seven years later, in November 2009, voters approved making it a charter city. Palmdale's population was 169,450 at the 2020 census, up from 152,750 at the 2010 census. Palmdale is the 32nd most populous city in California. Together with its immediate northern neighbor, the city of Lancaster, the Palmdale–Lancaster urban area had a population of 359,559 in 2020.

Palmdale Regional Medical Center is a private hospital located in Palmdale, California. This hospital was the most expensive hospital project Universal Health Services has ever undertaken at US$200 million. Adjacent to the hospital itself is a 60,000-square-foot (5,600 m2) medical office tower, called the Palmdale Medical Plaza. The hospital complex will also feature apartment housing for those who need assisted living. The hospital complex is 34.17 acres (13.83 ha). This acute care facility is the only hospital in Palmdale, the largest city in California without a hospital prior to opening in December 2010. The hospital is 320,000 square feet (30,000 m2), and provides 775 jobs to the area. It opened with 127 beds, with another 44 beds approved to be added 8 months after opening. The hospital will be able to expand to 239 beds at maximum development.This new facility features a 35-bed emergency department, the largest in the Antelope Valley area, and a heliport (FAA LID: 50CN).

The Palmdale Transportation Center is a multi-modal transportation center featuring a Metrolink rail station, a local bus hub, and commuter bus hub in the city of Palmdale, California. The center was completely rebuilt in April 2005. It features a "clock tower plaza" which has an enclosed waiting room with concessions and vending, public telephone, restrooms, a bus pass sales office, and security service. The center has four partially enclosed shelters at the bus hub and six partially enclosed shelters for the rail platform. The center also has a large park and ride facility with 586 spaces.

Little Rock Dam, also known as Littlerock Dam, or officially as Little Rock-Palmdale Dam, is a concrete gravity dam on Little Rock Creek in Los Angeles County, California, about 5 mi (8.0 km) south of Palmdale. The dam and Little Rock Reservoir are owned by the Palmdale Water District and Littlerock Creek Irrigation District and are used for agricultural and municipal water supply and flood control.The dam is 124 ft (38 m) high from foundation to crest and spans 576 ft (176 m) across the canyon, forming a reservoir with a capacity of 3,700 acre⋅ft (4,600,000 m3). The reservoir has a surface area of 108 acres (44 ha) and receives water from a drainage area of 63.7 sq mi (165 km2) on the north slope of the San Gabriel Mountains. A formerly popular recreation spot, the dam, reservoir, and vicinity used to receive about 300,000 visitors each year, but since 2015, the facilities have been closed to the public.Designed by John S. Eastwood, a noted engineer of several dams in the western U.S., Littlerock was built in 1924 by the Palmdale Irrigation District (now Palmdale Water District) to provide a water supply for orchards in the area. With a height of 112 ft (34 m) and holding 2,400 acre⋅ft (3,000,000 m3) of water, it was the tallest multiple-arch reinforced concrete dam in the world at the time. The dam's design combined with its record height was highly controversial; the state mandated renovations in 1932, in which concrete buttresses were added to the dam face. In 1938, the dam nearly failed as a result of historic flooding, which led to the evacuation of hundreds of people in downstream towns. The dam was renovated again in 1966 to comply with increasing safety standards and regional urban development. In the 1970s, it was listed on the National Register of Historic Places (NRHP).In 1994, the last major renovation of the dam was completed, which involved strengthening the face with roller-compacted concrete, hiding the original multiple-arch design and transforming it to resemble a conventional gravity dam. The arches are still visible on the back face of the dam when the water level in the reservoir is low. The design changes resulted in the dam being taken off the NRHP. The dam was also raised 12 ft (3.7 m) and a new spillway added, increasing the reservoir capacity to its current 3,700 acre⋅ft (4,600,000 m3).The dam and reservoir are scheduled for a major renovation project in three separate phases. The first phase begins with construction of a subterranean grade control structure within Littlerock Reservoir at Rocky Point. The second phase is the removal of 1,165,000 cubic yards (891,000 m3) of accumulated sediment from within the reservoir over a seven- to twelve-year time frame. Finally, scheduled ongoing sediment removal of approximately 38,000 cubic yards (29,000 m3) per year to maintain design capacity. There are no plans to reopen its facilities to the public.The California Office of Environmental Health Hazard Assessment (OEHHA) has developed a safe eating advisory for Little Rock Reservoir based on levels of mercury or PCBs found in fish caught from this water body.

California's 25th congressional district is a congressional district in the U.S. state of California. The district is currently represented by Democrat Raul Ruiz. The district includes all of Imperial County and parts of Riverside County and San Bernardino County. Cities in the new 25th district include Cathedral City, Indio, Coachella, El Centro, Calexico, San Jacinto, Hemet, and Needles. Most of the majority-Latino parts of the Coachella Valley are in the 25th, while the rest of the valley is in the 41st district.