Stony Gorge Dam, Gravity dam in Glenn County, California.

Stony Gorge Dam is a concrete buttress dam, an early Ambursen-type structure, standing 153 feet (47 m) high and 868 feet (265 m) long at its crest on Stony Creek in Glenn County, California. Built between 1926 and 1928, it uses contraction joints between all face slabs and buttresses. The dam impounds Stony Gorge Reservoir, which has a water surface of 1,280 acres (520 ha) and about 18 miles (29 km) of shoreline.

The Bureau of Reclamation built this structure between 1926 and 1928 to store water for agriculture and regional development. It became part of a broader water management system designed to transform farming in the area.

The reservoir plays a central role in sustaining farming in the region, providing water that local agricultural communities depend on for their crops. This water source has shaped how people use and value the land around them.

The shoreline has camping areas where visitors can set up tents or park recreational vehicles for overnight stays. A boat ramp provides water access, though the conditions vary depending on seasonal water levels.

Stony Gorge Dam is one of the Bureau of Reclamation's earliest Ambursen-type dams, built with contraction joints between every face slab and buttress. The reservoir's fish, including largemouth and smallmouth bass, bluegill, crappie and catfish, carry a California OEHHA safe-eating advisory based on mercury and PCB levels.