Temecula Valley is a graben rift valley in western Riverside County, California.
Temecula Valley is one of the graben valleys making up the Elsinore Trough, created by the Elsinore Fault Zone. It lies between the Wildomar Fault on the east, at the foot of the Temescal Mountains and of the Temecula Basin and the Willard Fault on the west, at the foot of the Santa Ana Mountains. Temecula Valley lies northwest of Temecula Creek, and its head (33°36′46″N 117°17′33″W / 33.61278°N 117.29250°W) is south of the Elsinore Valley, from which it is divided by a low rise between the Temescal and Santa Ana Mountains.
The valley is drained by Murrieta Creek and its tributaries, itself a tributary of the Santa Margarita River.
The core of the cities of Murrieta, Temecula and Wildomar are located in this valley.
- ^ Rene Engel, GEOLOGY AND MINERAL DEPOSITS OF THE LAKE ELSINORE QUADRANGLE CALIFORNIA, CAIIFORNIA DEPARTMENT OF NATURAL RESOURCES, BULLETIN 146, DIVISION OF MINES, SAN FRANCISCO, 1959, pp. 14, 55-51.
- ^ Robert A. Larson, James E. Slosson editors, Storm-Induced Geologic Hazards: Case Histories from the 1992-1993 Winter in Southern California and Arizona, Volume 11, Geological Society of America, January 1, 1997, p.50, Fig. 1
Coordinates: 33°33′20″N 117°12′40″W / 33.55556°N 117.21111°W