Poore Lake Reservoir, located in Mono County, California, is a privately-owned water storage facility with a primary purpose of water supply for irrigation and domestic use. The reservoir was completed in 1900 and has a storage capacity of 1,200 acre-feet, serving as a vital resource for the surrounding area. Poore Lake Reservoir is situated along Poore Creek and covers a surface area of 94 acres, providing a reliable source of water in a region known for its arid climate.

The dam at Poore Lake Reservoir is an earth-fill structure with a height of 23 feet and a hydraulic height of 18 feet. Despite being classified as having a low hazard potential, the dam is regularly inspected and maintained to ensure its structural integrity. The condition assessment conducted in September 2017 deemed the reservoir to be in satisfactory condition, reassuring stakeholders of its safety and reliability. With the State of California regulating its operation and maintenance, Poore Lake Reservoir remains a crucial asset in the management of water resources within the region.

Located in the city of Walker and overseen by the California Department of Water Resources, Poore Lake Reservoir plays a significant role in supporting agricultural activities and meeting the water needs of the local community. With a history that dates back over a century, this reservoir stands as a testament to effective water resource management and highlights the importance of maintaining infrastructure to ensure a sustainable water supply in the face of changing climate conditions.