Twain Harte, a private water resource structure located in Mono Vista, California, stands as a vital entity for water supply in the area. This multi-arch dam, completed in 1928, boasts a height of 36 feet and a storage capacity of 143 acre-feet. The dam serves not only for water supply but also for recreational purposes, highlighting its role in the community's livelihood and enjoyment.

Managed by the California Department of Water Resources (DWR) and regulated for safety, Twain Harte's dam stands as a symbol of water resource management in the region. With a significant hazard potential but a satisfactory condition assessment, the dam is crucial for ensuring water security while mitigating potential risks. The last inspection in September 2020 affirmed its operational integrity, demonstrating its reliability in safeguarding the surrounding environment.

With a drainage area of 1.04 square miles and a spillway type yet to be specified, Twain Harte's dam remains a focal point for water enthusiasts and climate advocates alike. Its historical significance, combined with its modern-day functionality, underscores the importance of sustainable water management practices in the face of changing climate conditions. As a key element in the local water infrastructure, Twain Harte's dam continues to play a crucial role in ensuring water security and environmental resilience in the region.