Gem Lake, located in Mono County, California, is a private hydroelectric dam constructed in 1917 by L.R. Jorgensen. The dam stands at a height of 80 feet and has a capacity of 17,228 acre-feet, serving as a vital source of water storage for the surrounding area. With a maximum discharge of 1,700 cubic feet per second, Gem Lake plays a crucial role in regulating water flow and providing hydroelectric power to the region.

The dam's primary purpose is hydroelectric generation, but it also offers recreational opportunities for visitors to enjoy. Situated on Rush Creek, the dam spans 688 feet in length and covers a surface area of 282 acres. Despite its age, Gem Lake Dam is regularly inspected and regulated by both state and federal agencies to ensure its structural integrity and safety. With a high hazard potential and moderate risk assessment, the dam remains a key feature in the water resource management and climate resilience efforts in the area.

Gem Lake Dam is a testament to the intersection of human ingenuity and natural resource management, showcasing the importance of sustainable hydroelectric infrastructure in a changing climate. As water resource and climate enthusiasts, understanding the significance of structures like Gem Lake Dam is crucial in safeguarding our water supply and adapting to environmental challenges. With its rich history and continued utility, Gem Lake Dam stands as a symbol of resilience and innovation in the face of evolving climate conditions.