Lake Oroville State Recreation Area, State recreation area in Butte County, United States

Lake Oroville State Recreation Area is a 29,447-acre California state park unit established in 1967 around the Feather River reservoir in Butte County, outside Oroville. It takes in the lake and surrounding project lands plus the Diversion Pool and Thermalito Forebay downstream of Oroville Dam. A visitor center with interpretive exhibits and a 47-foot observation tower overlooks the water and dam.

Lake Oroville State Recreation Area was established as a California state park unit in 1967, around the reservoir on the Feather River. The park covers 29,447 acres (11,917 ha) and takes in Lake Oroville, the Diversion Pool and the Thermalito Forebay downstream of Oroville Dam.

The visitor center holds interpretive exhibits and a 47-foot observation tower overlooking the lake and dam. Nearby, the Feather River Fish Hatchery lets visitors see salmon and steelhead rearing operations.

The area has multiple marinas with boat launches, camping, and picnic facilities at different shoreline points. Most visitor areas are accessible with clear signage for independent exploration.

When the reservoir drops to about 720 feet, a submerged train tunnel appears in Berry Creek cove, a remnant of the railway line that ran through the Feather River canyon before the dam filled the valley.