Mineral Hot Springs Lake, located in San Bernardino, California, is a private water resource that serves multiple purposes, including water supply and recreational activities. The earth dam, completed in 1967, stands at a height of 54 feet and has a storage capacity of 37 acre-feet. The lake covers 2 acres and is fed by Tr East Twin Cr.

Managed by a private owner, the dam is regulated by the state of California, with inspections and enforcement carried out regularly to ensure its structural integrity. Despite being classified as having a high hazard potential, the dam is currently in satisfactory condition, as assessed in September 2017. The surrounding area offers a picturesque setting for visitors and water resource enthusiasts to enjoy the serene beauty of the lake and its natural surroundings.