Pyramid Lake, Southern California
Pyramid Lake, seen here, is in Southern California. It is formed by Pyramid Dam, which is on Piru Creek. This is fed by water that comes up from San Joaquin Valley, through the Tehachapi mountains, and fed into the creek by the West Branch California Aqueduct.
I got this shot while traveling through on the interstate, as it is just to the west of it, near Castaic, California.