Los Alamos Ranch House

The 1880 Union Hotel, located in Los Alamos, California, is a hotel and saloon and an historic landmark.

Bell's is a restaurant serving Californian and French cuisine in Los Alamos, California. The restaurant has received a Michelin star.

Los Alamos (Spanish: Los Álamos, meaning The Cottonwoods) is an unincorporated community in Santa Barbara County, California, United States. Located in the Los Alamos Valley, the town of Los Alamos is considered to be a part of the Santa Ynez Valley community. Los Alamos is also connected to other cities Vandenberg SFB, Lompoc, Buellton, Solvang, and other Santa Barbara County cities. It is 140 miles (230 kilometres) northwest of Los Angeles and 281 miles (452 km) south of San Francisco. The population was 1,890 at the 2010 census, up from 1,372 at the 2000 census. For statistical purposes, the United States Census Bureau has defined Los Alamos as a census-designated place (CDP).

Rancho Los Álamos was a 48,803-acre (197.50 km2) Mexican land grant in present-day Santa Barbara County, California given in 1839 by Governor Juan Alvarado to José Antonio de la Guerra, a son of José de la Guerra y Noriega. Los Álamos is Spanish for "the cottonwoods" and describes Frémont's Cottonwood (Populus fremontii) trees lining the banks of the San Antonio Creek.

The Cat Canyon Oil Field is a large oil field in the Solomon Hills of central Santa Barbara County, California, about 10 miles southeast of Santa Maria. It is the largest oil field in Santa Barbara County, and as of 2010 is the 20th-largest in California by cumulative production.The field was discovered in 1908, just seven years after the nearby Orcutt field. At first it was developed slowly, because of difficulties in drilling and keeping wells productive, but as ever-richer reservoirs were revealed in the next two decades it gradually became one of the most productive fields in the state. A mature field in decline, estimated reserves have dwindled to 2.3 million barrels, less than one percent of the total produced in the preceding century. A total of 243 wells remained active, although a field revitalization program commenced by ERG Resources in 2011 intends to extend the field's lifetime by extracting reserves previously considered unrecoverable. The largest operators currently active on the field are Greka Energy with 168 active wells, and ERG, who plans to bring over 300 shut-in wells back into production.

The Purisima Hills are a northwest-to-southeast trending low mountain range of the Outer Southern California Coast Ranges, located in Santa Barbara County, California. They divide the Santa Ynez Valley on the south from the Los Alamos Valley on the north. They are the location of the economically important Lompoc Oil Field. The Purisima Hills are the southernmost location in the current natural range of the coast Douglas-Fir (Pseudotsuga menziesii var. menziesii).

Early on the Sunday morning of April 25, 1965, 16-year-old Michael Andrew Clark opened fire on cars traveling along U.S. Highway 101 just south of Orcutt, California from a nearby hilltop. Three people were killed and ten were wounded before Clark committed suicide upon arrival of police.

The Well, Hill 4 is a California Historical Landmark in Lompoc, California's Lompoc Oil Field in the Purisima Hills. The oil well is the first one to use pumping cement to aid in installing a shutoff valve. The well became a California State Historical Landmark No. 582 on May 1, 1957. The well is located at Unocal Corporation facility in the Mission Hills District of Lompoc. The California Historical Landmark plaque and the well are 1.6 miles behind the gated facility in a canyon. Union Oil Company of California hit the oil on September 26, 1905. Union Oil had drilled down 2,507 feet to hit the oil deposit. The oil well did not run dry till 1951. The well is named after engineer Frank E. Hill who was the leader of the first successful pumping cement cap. The California State Historical Landmark reads: NO. 582 WELL, HILL 4 - This well, spudded September 26, 1905, and completed April 30, 1906, is the first oil well in which a water shutoff was attained by pumping cement through the tubing and back of the casing-forerunner of the modern cementing technique. It was drilled to a depth of 2,507 feet by Union Oil Company of California, 1,872 feet of 10-inch casing and 2,237 feet of 8-inch casing were so securely cemented off that the well produced for over forty-five years.

Rancho La Laguna was a 48,704-acre (197.10 km2) Mexican land grant in present-day Santa Barbara County, California given in 1845 by Governor Pio Pico to Octaviano Gutierrez. The name means "the Lake". The grant extended along the Santa Ynez Valley east of present-day Los Alamos.

The Solomon Hills are a low mountain range in the western Transverse Ranges, in northern Santa Barbara County, California. The Hills separate the Santa Maria Valley and Santa Maria to the north, from the Los Alamos Valley and the Santa Ynez Valley to the south.

Rancho Santa Rita was a 13,316-acre (53.89 km2) Mexican land grant in present-day northern Santa Barbara County, California given in 1845 by Governor Pio Pico to José Ramón Malo. The grant was located in the Santa Rita Valley east of present-day Lompoc.

The Orcutt Oil Field is a large oil field in the Solomon Hills south of Orcutt, in Santa Barbara County, California. Discovered in 1901 by William Warren Orcutt, it was the first giant field (over 100 million barrels (16,000,000 m3) in ultimate recovery) to be found in Santa Barbara County, and its development led to the boom town of Orcutt, now the major unincorporated southern suburb of Santa Maria. With a cumulative production in 2008 of 870,000 barrels (138,000 m3) of oil, it is the largest onshore producing field in Santa Barbara County.The Orcutt field was called the "Santa Maria Field" until the discovery of the larger Santa Maria Valley Oil Field on the plain to the north, an area which is now largely covered with the urban and suburban development. Several oil companies, including Breitburn Energy and Phoenix Energy, LLC are still actively producing from the Orcutt field. The field, mostly located on the old Careaga family ranch, also contains the remains of the ghost town of Bicknell, a company town built for oil workers in the early years of the 20th century, but abandoned in the mid-1930s.