Lake Del Valle is a man made reservoir, by damming the Arroyo Del Valle river. Even during the winter, this river was not much of a river. Like the rest of California, this area is in a state of drought emergency. "Brown is the new Green", the sign at the entry gate stated.
This is not a small reservoir. The capacity of the lake is 77,000 acre feet (95,000,000 m3)
We took the opportunity to hike, along the Vallecitos trail, from our campground into the mountains and then back to the lake.