Ingals Swamp, also known as Dorris Brothers Reservoir, is a privately owned water resource located in Modoc County, California. The dam, completed in 1918, stands at a height of 23 feet and serves the primary purpose of water supply for irrigation and other uses. Managed by the Natural Resources Conservation Service, the reservoir has a storage capacity of 2850 acre-feet and covers a surface area of 262 acres.

Situated in the Big Sage Reservoir area, Ingals Swamp is regulated by the California Department of Water Resources for safety and compliance. Despite its low hazard potential and satisfactory condition assessment, the dam undergoes regular inspections to ensure its structural integrity. With a drainage area of 9 square miles, the reservoir plays a crucial role in managing water resources in the region and supporting local agriculture.

Located within the Sacramento District, Ingals Swamp is a vital water source in the area, contributing to the irrigation needs of the surrounding agricultural community. Its historical significance, coupled with its modern regulatory oversight, highlights the importance of sustainable water management practices in the face of climate change and increasing water demands. For water resource and climate enthusiasts, monitoring and preserving the integrity of structures like Ingals Swamp are essential for ensuring a secure and reliable water supply for future generations.