Bidwell Lake, also known as Round Valley Reservoir, is a public utility water supply located in Greenville, California. This Earth-type dam was completed in 1865 and stands at a height of 35 feet, with a storage capacity of 5200 acre-feet. The reservoir serves multiple purposes including irrigation, recreation, and water supply for the region.

Situated on No Canyon Creek in Plumas County, Bidwell Lake covers a surface area of 487 acres and has a drainage area of 8.93 square miles. The dam has a high hazard potential but is currently in satisfactory condition, as indicated by its last assessment in September 2017. The dam is regulated by the California Department of Water Resources (DWR) and undergoes regular inspections and enforcement measures to ensure its safety.

Water resource and climate enthusiasts visiting Bidwell Lake can appreciate its historical significance as a vital water source for the community. With its scenic surroundings and recreational opportunities, this reservoir showcases the intersection of human infrastructure with natural beauty, making it a fascinating destination for those interested in water management and sustainability efforts in California.