Crystal Lake, located in Tulare County, California, is a privately owned dam with a primary purpose of water supply. Built in 1903, this gravity dam stands at a height of 16.8 feet and has a storage capacity of 162 acre-feet. The dam is state-regulated by the Department of Water Resources (DWR) and undergoes regular inspections for safety and enforcement.

Situated near the Efk Kaweah River in Mineral King, Crystal Lake plays a crucial role in providing hydroelectric power and water supply to the surrounding area. With a low hazard potential and a satisfactory condition assessment, the dam is deemed to be in good standing for its intended purposes. The dam also boasts a historical significance, having been in operation for over a century, showcasing its resilience and importance in water resource management.

Despite its age, Crystal Lake continues to serve as a vital infrastructure for the community, ensuring a reliable water supply and contributing to the overall climate resilience of the region. With its strategic location and well-maintained structure, the dam stands as a testament to the careful planning and engineering that went into its construction over a hundred years ago.