Green Valley Lake is an unincorporated community in San Bernardino County, California. It has a population of about 300. The ZIP Code is 92341 and the community is inside area code 909.
The lake was artificially created in 1926 with the construction of the Green Valley Dam and makes the lake approximately 9 acres (36,000 m2) in size. The lake is not connected to any stream or river and is only fed by rain and snow. Fish are regularly stocked from May - August and freezes over the winter.
1880’s Timber claims made on Green Valley area by Highland Lumber Co.
1892-94 Horse trail from Fredalba lumber camp to Big Bear widened into toll wagon road by Bear Valley Wagon Rd. Co.Eleven-room Toll House was near entrance to campground. They gave the name of Green Valley to the area.
1893 San Bernardino National Forest "Reserve" created.
1926 Dam finished. Lake is 8.5 acres (34,000 m2). First lots to sell were the Tillits homestead lots that were saved from the logging in 1912.