Red Rock No. 1, also known as Dodge Reservoir, is a privately owned earth dam located in Ravendale, California, along the Red Rock Creek. Built in 1893, this historic structure stands at a height of 63 feet and has a storage capacity of 10,000 acre-feet. The dam primarily serves for irrigation and water supply purposes, supporting the local agricultural community in Lassen County.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Red Rock No. 1 is subject to regular inspections and enforcement measures to ensure its structural integrity and safety. The dam has a significant hazard potential but has been assessed as satisfactory in condition as of September 2017. With a drainage area of 43.5 square miles and a hydraulic height of 57.9 feet, this reservoir plays a crucial role in water resource management and climate resilience efforts in the region.

Despite its age, Red Rock No. 1 continues to provide essential water supply services, demonstrating the enduring importance of historical dams in sustaining communities and ecosystems. As a key component of the local water infrastructure, this earth dam serves as a testament to the resilience and adaptability of water resource systems in the face of changing environmental conditions. For water resource and climate enthusiasts, Red Rock No. 1 offers a fascinating case study on the intersection of heritage conservation, water management, and climate adaptation in California's diverse landscape.