Official information and visitors guide to Union Valley Reservoir which is located in eastern El Dorado County, California, about 20 miles northeast of Placerville. Our watercraft rentals and services include boats, jet ski, waverunners, boat tours, water sport lessons, and watercraft rentals. The lake is in El Dorado National Forest in the Sierra Nevada at an elevation of 4,870 feet. Recreation activities such as boating, hiking, biking, fishing and camping are available for families, business retreats, and friend outings.
The reservoir is fed by Big Silver Creek, Jones Fork Silver Creek, Tells Creek, Wench Creek and the outflows of Robbs Peak and Jones Fork powerhouses. Robbs Peak Powerhouse gets its water from the Middle Fork American River headwaters, by way of Loon Lake Reservoir, and small reservoirs on Gerle Creek and South Fork Rubicon River. Downstream from Union Valley Dam, Silver Creek waters are largely diverted through two additional powerhouses below small reservoirs before joining the South Fork American River a few miles north of Pollock Pines, California. Silver Creek was an intermittent creek before the development of Union Valley Reservoir and the diversions from the Middle Fork American River. Our company services all lakes that allow motorized power boats and seadoos in CA.