Imperial County is a county located on the southeast border of the U.S. state of California. As of the 2020 census, the population was 179,702, making it the least populous county in Southern California. The county seat and largest city is El Centro. Imperial is the most recent California county to be established, as it was created in 1907 out of the eastern half of San Diego County.
Salton City is a census-designated place (CDP) in Imperial County, California. It is the largest Imperial County development on the Salton Sea coast. It is part of the El Centro, California Metropolitan Statistical Area. The population was 3,763 at the 2010 census, up from 978 in 2000. The reported population for 2020 was 5,155.
Cathedral City, colloquially known as "Cat City", is a desert resort city in Riverside County, California, United States, within the Colorado Desert's Coachella Valley. Situated between Palm Springs and Rancho Mirage, the city has the second largest population, after Indio, of the nine cities in the Coachella Valley. Its population was 51,493 at the 2020 census, a slight increase from 51,200 at the 2010 census.
Coachella is a city in Riverside County, California, United States. It is the namesake and easternmost city of the Coachella Valley, in Southern California's Colorado Desert. Originally a railroad town, Coachella is a prominent hub for agriculture and shipping across Southern California and the Western United States.
Indio is a city in Riverside County, California, United States, in the Coachella Valley of Southern California's Colorado Desert region. Indio is approximately 125 miles (201 km) east of Los Angeles, 23 miles (37 km) east of Palm Springs, and 98 miles (158 km) west of Blythe, California.
Mecca is an unincorporated community located in Riverside County, California, United States. The desert community lies on the north shore of the Salton Sea in the Eastern Coachella Valley and is surrounded by agricultural land.
Palm Desert is a city in the Coachella Valley region of eastern Riverside County, California. The city is located in the Colorado Desert arm of the Sonoran Desert, about 14 miles (23 km) east of Palm Springs, 121 miles (195 km) northeast of San Diego and 122 miles (196 km) east of Los Angeles. The population was 51,163 at the 2020 census, and the city has been one of the state's fastest-growing since 1980, when its population was 11,801.
Rancho Mirage is a city in Riverside County, California, United States. The city is a low-density desert community with resorts, golf courses, and country clubs within the Colorado Desert section of the Sonoran Desert. Nestled along the foothills of the Santa Rosa Mountains in the south, it is located several minutes east of Palm Springs. The city is adjacent to Cathedral City, Palm Desert, and unincorporated Thousand Palms. The population was 16,999 at the 2020 census, down from 17,218 at the 2010 census, though the seasonal population can exceed 20,000. Incorporated in 1973, Rancho Mirage is one of the nine cities of the Coachella Valley.
Salton Sea Beach is a census-designated place (CDP) in Imperial County, California, located 2.5 miles (4 km) southeast of Desert Shores. The population was 508 at the 2020 census, up from 422 at the 2010 census, up from 392 at the 2000 census. It is part of the El Centro, California Metropolitan Statistical Area. It was the location of the Naval Auxiliary Air Station Salton Sea.
The Salton Sea is a shallow, landlocked, highly saline endorheic lake in Riverside and Imperial counties at the southern end of the U.S. state of California. It lies on the San Andreas Fault within the Salton Trough, which stretches to the Gulf of California in Mexico. The lake is about 15 by 35 miles at its widest and longest. A 2023 report puts the surface area at 318 square miles (823.6 km2). The Salton Sea became a resort destination in the 20th Century, but saw die-offs of fish and birds in the 1980s due to contamination from farm runoff, and clouds of toxic dust in the current century as evaporation exposed parts of the lake bed.
The Imperial Valley of Southern California lies in Imperial and Riverside counties, with an urban area centered on the city of El Centro. The Valley is bordered by the Colorado River to the east and, in part, the Salton Sea to the west. Farther west lies the San Diego and Imperial County border. To the north is the Coachella Valley region of Riverside County, which together with Imperial Valley form the Salton Trough, or the Cahuilla Basin, also the county line of Imperial and Riverside counties, and to the south the international boundary with Mexico.
The Coachella Valley is an arid rift valley in the Colorado Desert of Southern California in Riverside County. The valley has been referred to as Greater Palm Springs and occasionally the Palm Springs Area due to the historic prominence of the city of Palm Springs. The valley extends approximately 45 mi (72 km) southeast from the San Gorgonio Pass to the northern shore of the Salton Sea and the neighboring Imperial Valley, and is approximately 15 mi (24 km) wide along most of its length. It is bounded on the northeast by the San Bernardino and Little San Bernardino Mountains, and on the southwest by the San Jacinto and Santa Rosa Mountains.
The Cahuilla, also known as ʔívil̃uqaletem or Ivilyuqaletem, are a Native American people of the various tribes of the Cahuilla Nation, living in the inland areas of southern California. Their original territory encompassed about 2,400 square miles (6,200 km2). The traditional Cahuilla territory was near the geographic center of Southern California. It was bounded to the north by the San Bernardino Mountains, to the south by Borrego Springs and the Chocolate Mountains, to the east by the Colorado Desert, and to the west by the San Jacinto Plain and the eastern slopes of the Palomar Mountains.
The Coachella Valley Unified School District is a public school district in Riverside County, California and Imperial County, California, United States, with headquarters in Thermal. The District serves a 1,250-square-mile (3,200 km2) area, including the cities of Coachella, Indio and La Quinta and the following unincorporated communities:
Thermal is an unincorporated community within the Coachella Valley in Riverside County, California, United States, located approximately 25 miles (40 km) southeast of Palm Springs and about 9.5 miles (15.3 km) north of the Salton Sea. The community's elevation is 138 feet (42 m) below mean sea level. It is served by area codes 760 and 442 and is in ZIP Code 92274. The population was 2,865 at the 2010 census. For statistical purposes, the United States Census Bureau has defined Thermal a census-designated place (CDP), which does not precisely correspond to the historical community.
Palm Springs is a desert resort city in Riverside County, California, United States, within the Colorado Desert's Coachella Valley. The city covers approximately 94 square miles (240 km2), making it the largest city in Riverside County by land area. With multiple plots in checkerboard pattern, more than 10% of the city is part of the Agua Caliente Band of Cahuilla Indians reservation land and is the administrative capital of the most populated reservation in California.
Today's Bradshaw Trail is a historic overland stage route in the western Colorado Desert of Southern California. It is a remnant of the much longer Bradshaw Road, also known as the Road to La Paz, or Gold Road, established in 1862 by William D. Bradshaw. It was the first overland route to connect the gold fields near La Paz in the U.S. New Mexico Territory, later the Arizona Territory, to Southern California's more populated west coast. Once in La Paz, additional roads provided access to the mining districts of the central New Mexico/Arizona Territory, near Wickenburg and Prescott.
Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, the population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the United States. The name was derived from the city of Riverside, which is the county seat.
Lake Cahuilla was a prehistoric lake in California and northern Mexico. Located in the Coachella and Imperial valleys, it covered surface areas of 5,700 km2 (2,200 sq mi) to a height of 12 m (39 ft) above sea level during the Holocene. During earlier stages of the Pleistocene, the lake reached even higher elevations, up to 31–52 m (102–171 ft) above sea level. During the Holocene most of the water came from the Colorado River with little contribution from local runoff; in the Pleistocene local runoff was higher and it is possible that Lake Cahuilla was supported solely from local water sources during the Wisconsin glaciation. The lake overflowed close to Cerro Prieto into the Rio Hardy, eventually draining into the Gulf of California.
United States 
California 
