Lake Elsinore is a city in western Riverside County, California, United States. Established as a city in 1888, it is on the shore of Lake Elsinore, a natural freshwater lake about 3,000 acres (1,200 ha) in size. The city has grown from a small resort town in the late 19th and early 20th centuries to a suburban city with over 70,000 residents.
Wildomar is a city in southwest Riverside County, California, United States. The city was incorporated on July 1, 2008. As of the 2020 census, the population was 36,875. The community has grown very quickly during the early twenty-first century; the population has more than doubled since the 2000 census, when the community was still an unincorporated census-designated place.
In geology, a graben is a depressed block of the crust of a planet or moon, bordered by parallel normal faults.
Lake Elsinore is a natural freshwater lake in Riverside County, California, United States, located east of the Santa Ana Mountains and fed by the San Jacinto River. Originally named Laguna Grande by Spanish explorers, it was renamed for the town of Elsinore, established on its northeastern shore on April 9, 1888.
The Santa Ana Mountains are a short peninsular mountain range along the coast of Southern California in the United States. They extend for approximately 61 miles (98 km) southeast of the Los Angeles Basin largely along the border between Orange and Riverside counties.
The San Bernardino Valley is a valley in Southern California located at the south base of the Transverse Ranges. It is bordered on the north by the eastern San Gabriel Mountains and the San Bernardino Mountains; on the east by the San Jacinto Mountains; on the south by the Temescal Mountains and Santa Ana Mountains; and on the west by the Pomona Valley. Elevation varies from 590 feet (180 m) on valley floors near Chino to 1,380 feet (420 m) near San Bernardino and Redlands. The valley floor is home to over 80% of the more than 4 million people in the Inland Empire region.
The Elsinore Fault Zone is a large right-lateral strike-slip geological fault structure in Southern California. The fault is part of the trilateral split of the San Andreas fault system and is one of the largest, though quietest faults in Southern California.
The Temecula Valley is a graben rift valley in western Riverside County, California.
Rancho La Laguna was a 13,339-acre (53.98 km2) Mexican land grant in present-day Riverside County, California given in 1844 by Governor Manuel Micheltorena to Julian Manriquez. The rancho lands are included in the present day city of Lake Elsinore and Wildomar. At the time of the US Patent, Rancho Laguna was a part of San Diego County. The County of Riverside was created by the California Legislature in 1893 by taking land from both San Bernardino and San Diego Counties.
El Cariso is an unincorporated community in Riverside County, California. It lies along the Ortega Highway, just west of where it crosses the crest of the Santa Ana Mountains a few miles southwest of Lake Elsinore. It lies within the Trabuco District of the Cleveland National Forest. El Cariso Campground is north of the town across the highway from the El Cariso Fire Station.
Temescal Creek is an approximately 29-mile-long (47 km) watercourse in Riverside County, in the U.S. state of California. Flowing primarily in a northwestern direction, it connects Lake Elsinore with the Santa Ana River. It drains the eastern slopes of the Santa Ana Mountains on its left and on its right the western slopes of the Temescal Mountains along its length. With a drainage basin of about 1,000 square miles (2,600 km2), it is the largest tributary of the Santa Ana River, hydrologically connecting the 720-square-mile (1,900 km2) San Jacinto River and Lake Elsinore watersheds to the rest of the Santa Ana watershed. However, flowing through an arid rain shadow zone of the Santa Ana Mountains, and with diversion of ground water for human use, the creek today is ephemeral for most of its length, except for runoff from housing developments and agricultural return flows.
Alberhill is an unincorporated community in Riverside County, California. Alberhill is located 5.5 miles (8.9 km) northwest of Lake Elsinore. It lies at an elevation of 1234 feet. Alberhill was named after C.H. Albers and James and George Hill.
The Elsinore Trough is a graben rift valley in Riverside County, southern California. It is created by the Elsinore Fault Zone.
Temescal Mountains, also known as the Sierra Temescal, are one of the northernmost mountain ranges of the Peninsular Ranges in western Riverside County, in Southern California in the United States. They extend for approximately 25 mi (40 km) southeast of the Santa Ana River east of the Elsinore Fault Zone to the Temecula Basin and form the western edge of the Perris Block.
Temescal Valley in California is a graben rift valley in western Riverside County, California, a part of the Elsinore Trough. The Elsinore Trough is a graben between the Santa Ana Mountain Block to the southwest and the Perris Block on the northeast. It is a complex graben, divided lengthwise into several smaller sections by transverse faults. The Temescal Valley is one of these graben, at the northern end of the trough. The Temescal Valley graben is bounded northeast side by the Lee Lake longitudinal fault and similarly on the southeast by the Glen Ivy Fault.
The Clevelin Hills are a range of hills in the Peninsular Ranges System, within the Temescal Mountains in western Riverside County, in southern California.
The Perris Block is the central block of three major fault-bounded blocks of the northern part of the Peninsular Ranges. The Perris Block lies between the Santa Ana Block to the west and the San Jacinto Block to the east. The Perris Block, was named by Walter A. English in 1925 for the city of Perris, located near the center of the block.
Wolf Valley is a graben rift valley in the Elsinore Trough, in western Riverside County, California.
Cajalco Canyon Creek is an ephemeral stream that flows through Cajalco Canyon in the Temescal Mountains of Riverside County, California, United States. It is a tributary to Temescal Wash, itself a tributary to the Santa Ana River. Cajalco is thought to be a Hispanic spelling of the word for "quail" in the languages of the Luiseño and Cahuilla who lived in the area. The word Cajalco is an acronym- California Jalisco Land Company of Los Angeles
Pauba Valley is a valley along the course of Temecula Creek, in Riverside County, California.
