Little Mountain is a local government-owned earth dam nestled in San Bernardino, California, specifically designed for flood risk reduction along Devil Can Creek. The dam, completed in 1958, stands at a height of 28 feet with a hydraulic height of 17.4 feet and a length of 2100 feet. It boasts a storage capacity of 150 acre-feet and covers a surface area of 23 acres, serving a drainage area of 5.22 square miles. Despite its critical purpose, Little Mountain poses a high hazard potential, although its condition assessment in 2017 deemed it satisfactory, ensuring its structural integrity in the face of potential emergencies.

Managed and regulated by the California Department of Water Resources (DWR) under the Safety of Dams program, Little Mountain undergoes regular inspections every 1 year to monitor its performance and safety. The dam's emergency action plan (EAP) was last revised in March 2021, showcasing a commitment to preparedness in case of unforeseen events. The surrounding area, represented by Congressman Pete Aguilar, relies on Little Mountain as a vital safeguard against flooding, highlighting the interconnected relationship between water resources, climate resilience, and community protection.

For water resource and climate enthusiasts, Little Mountain presents a fascinating case study of how infrastructure like dams play a crucial role in flood risk reduction and water management within local communities. Its historical significance, ongoing maintenance, and regulatory oversight underscore the importance of sustainable water resource practices in mitigating natural hazards and safeguarding the environment for future generations.