Randall Reservoir, located in Bonanza, Oregon, is a privately owned water resource that plays a vital role in irrigation for the surrounding area. The reservoir, completed in 1960, stands at a height of 38 feet and has a storage capacity of 725 acre-feet. With a surface area of 49 acres and a drainage area of 10.39 square miles, the reservoir is fed by the Lost River, a tributary to the Klamath River.

With its low hazard potential and not yet rated condition assessment, Randall Reservoir provides a reliable source of water for agricultural purposes in the region. The dam, primarily made of earth with a length of 962 feet, serves as a crucial infrastructure for managing water resources in the area. The reservoir also has a maximum discharge capacity of 580 cubic feet per second, ensuring efficient water flow during periods of excess.

Although not under the jurisdiction of the US Army Corps of Engineers, Randall Reservoir is regulated by the Oregon Water Resources Department, ensuring proper inspection, enforcement, and permitting procedures are in place. With its strategic location and significant contribution to irrigation needs, this reservoir stands as a key component in the region's water resource management efforts.