Long Valley, also known as Crowley Lake, is a local government-owned water resource nestled in the picturesque Mono County, California. It stands as a vital structure along the Owens River, serving as a key component in the state's water supply infrastructure. Completed in 1941, this earth dam stands at an impressive height of 126 feet, with a storage capacity of 183,465 acre-feet.

With a primary purpose of water supply, Long Valley also caters to hydroelectric power generation and recreational activities. Its strategic location in the city of Bishop makes it a hub for water enthusiasts and climate advocates alike. Despite its high hazard potential, the dam's condition assessment remains satisfactory, ensuring the safety and integrity of this critical water management system.

Managed by the Department of Water Resources and the Safety of Dams agency, Long Valley undergoes regular inspections and enforcement to guarantee its operational efficiency. With a vast drainage area of 437 square miles and a surface area of 5,280 acres, this dam plays a crucial role in water conservation and management in the region. For those passionate about water resources and climate resilience, Long Valley stands as a remarkable example of sustainable infrastructure supporting both environmental and societal needs.