Munn Reservoir, located in Baker, Oregon, along the Middle Fork Burnt River, is a privately owned water resource primarily used for irrigation purposes. The earth dam, completed in 1947, stands at a height of 23 feet and has a storage capacity of 205 acre-feet, with a normal storage level of 120 acre-feet. The reservoir covers an area of 18.25 acres and serves as a vital water source for the surrounding agricultural lands.

Maintained and regulated by the Oregon Water Resources Department, Munn Reservoir has a low hazard potential and has not been assessed for its condition. The dam's last inspection was conducted in October 2020, with a scheduled frequency of every six years. Despite its relatively small size, the reservoir plays a crucial role in supporting the local farming community by providing a reliable water supply for crop irrigation.

With its picturesque location and essential function in sustaining agricultural activities, Munn Reservoir serves as a valuable asset in water resource management in the region. As climate change continues to impact water availability and quality, reservoirs like Munn play a vital role in ensuring a stable water supply for both agricultural and ecological needs in the area.