Elsinore Valley

Elsinore Valley, in California is a graben rift valley in western Riverside County, California, a part of the Elsinore Trough. The Elsinore Valley is a graben between the Santa Ana 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 Elsinore Valley graben is bounded northeast side by the Glen Ivy longitudinal fault on the north shore of Lake Elsinore at the foot of the Clevelin Hills and similarly on the southeast by the Willard Fault that runs along the at the foot of the Santa Ana Mountains and parallel to the Elsinore Fault along the southwest shore of Lake Elsinore to Rome Hill and the Willard Fault continues on as the west side of the Temecula Valley graben and Wolf Valley graben. At the south end of Lake Elsinore the Wildomar Fault enters the lake just east of Rome Hill, running southeast on the northwest side of the Temecula Valley.

The Elsinore Valley is marked in the south by the rise between the Elsinore and Temecula Valley. In the north the valley bounds are marked by the Santa Ana Mountain ridges moved eastward along the Los Pinos and Lucerne transverse faults, dividing the Elsinore Valley from the Temescal Valley graben.^[1]^[2]

References

↑ Rene Engel, GEOLOGY AND MINERAL DEPOSITS OF THE LAKE ELSINORE QUADRANGLE CALIFORNIA, CAIIFORNIA DEPARTMENT OF NATURAL RESOURCES, BULLETIN 146, DIVISION OF MINES, SAN FRANCISCO, 195E9, pp. 50-51
↑ Rene Engal, Geologic Map of Lake Elsinore Quadrangle, State of California, Department of Natural Resources, 1959

Coordinates: 33°37′30″N 117°18′30″W / 33.62500°N 117.30833°W / 33.62500; -117.30833

Inland Empire

Counties	Riverside San Bernardino

Major cities	Riverside San Bernardino

Cities and towns 100k+	Corona Fontana Moreno Valley Murrieta Ontario Rancho Cucamonga Temecula Victorville

Cities and towns 25k–100k	Apple Valley Banning Beaumont Cathedral City Chino Chino Hills Coachella Colton Desert Hot Springs Eastvale Hemet Hesperia Highland Indio Jurupa Valley Lake Elsinore Menifee Montclair Norco Palm Desert Palm Springs Perris Redlands Rialto Rubidoux San Jacinto Twentynine Palms Upland Valle Vista Wildomar Yucaipa

Cities and towns 10k–25k	Adelanto Barstow Big Bear City Bloomington Blythe Cabazon Canyon Lake Crestline Glen Avon Grand Terrace La Quinta Loma Linda Mira Loma Pedley Rancho Mirage Twentynine Palms Yucca Valley

Cities and towns under 10k	Big Bear Lake Calimesa Devore El Cerrito Oak Glen Highgrove Home Gardens Indian Wells Joshua Tree Lake Arrowhead Landers Mentone Muscoy Needles Romoland San Antonio Heights Sunnyslope Wrightwood Woodcrest

Regions	Coachella Valley Cucamonga Valley Elsinore Trough High Desert Morongo Basin Perris Plain Plains of Leon San Bernardino Mountains San Bernardino Valley San Jacinto Mountains San Jacinto Valley Santa Ana Mountains Temescal Mountains Victor Valley

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