The valley of the Owens River, in east central California, between the Sierra Nevada and the Inyo Mountains, the source since 1913 of much of the water supply for Los Angeles.
Definition of Owens Valley in US English:
Owens Valley
proper nounˌōwənz ˈvalē
The valley of the Owens River, in east central California, between the Sierra Nevada and the Inyo Mountains, the source since 1913 of much of the water supply for Los Angeles.