San Bernardino, CA 92408
Lost Lake is a unique natural lake created by the San Andreas Fault. Although the lake has not been stocked with fish for many years, people still try their luck and toss a line in.
Many visit the lake to picnic along the banks. There are also opportunities for bird watching. This fault-formed lake is fed by deep natural springs, and those interested in geology can find evidence of the San Andreas Fault in the surrounding area.