Lake Pillsbury is a reservoir located north of San Francisco in the Mendocino National Forest, California, USA. It is on the South Fork Eel River with recreational facilities for camping and boating. Elevation is with of shoreline and of water surface. Activities in the Lake Pillsbury Recreation Area include powerboating, fishing, swimming, sailing, picnicking, hiking and hang gliding. There are two main access roads to the lake. At the north end of the lake is a small gravel airstrip.
In 1906, W.W. Van Arsdale formed the Eel River Power and Irrigation Company and contracted with the city of Ukiah for a hydroelectric generating station to increase electricity supply for the city. A diversion dam was built on the Eel River and a mile-long tunnel was constructed to divert water into the Russian River. A powerhouse was constructed in Potter Valley. It was called the Eel River Project.
Later that year, the Snow Mountain Water and Power Company incorporated and took over the project f (from [www.wikipedia.org](http://www.wikipedia.org/wiki/Lake_Pillsbury).