Boca Reservoir, artificial lake in California, USA

Boca Reservoir is a man-made lake in Nevada County, California, formed by damming the Little Truckee River within Tahoe National Forest. The water supply comes primarily from the Little Truckee River, which maintains fresh water flow while the dam regulates water levels and manages seasonal fluctuations from snowmelt and rainfall.

Boca Reservoir was formed by the construction of Boca Dam across the Little Truckee River, about 10 km northeast of Truckee in Nevada County, California. The reservoir lies within Tahoe National Forest, downstream of Stampede Dam and east of Prosser Creek Dam and Prosser Creek Reservoir. It covers roughly 3.8 square kilometres at an elevation of about 1,710 metres.

Boca Reservoir lies about 10 km northeast of Truckee in Nevada County, within Tahoe National Forest, reached from the Interstate 80 corridor near Boca. The reservoir sits at roughly 1,710 m elevation, so snow can affect access in winter. The water covers about 3.8 km² and runs some 3.9 km north to south and 2.1 km east to west, with Boca Hill, Boca Spring and the Little Truckee River nearby.

The water freezes over during winter months, allowing for ice fishing and creating a completely different landscape from the open-water season. This seasonal transformation offers visitors distinct activities and views depending on when they arrive.