Bear Valley, also known as Big Bear Lake, is a vital water resource located in Mentone, California. Owned by a public utility, this dam on Bear Creek serves multiple purposes including irrigation, recreation, and water supply. Completed in 1911, the multi-arch dam stands at a height of 80 feet and has a storage capacity of 74,000 acre-feet.

With a drainage area of 38.7 square miles, Bear Valley plays a crucial role in providing water to the surrounding areas. The dam, regulated by the California Department of Water Resources and Safety of Dams, is inspected regularly to ensure its safety and functionality. Despite being classified as having a high hazard potential, the dam is currently in satisfactory condition according to the most recent assessment in September 2017.

Situated in San Bernardino County, Bear Valley's scenic beauty and important role in water supply make it a significant site for water resource and climate enthusiasts. Its historical significance, combined with its modern-day impact on the region, make it a fascinating location to study and appreciate in the context of water management and climate resilience.