Rundle Du, located in Slope County, North Dakota, is a Federal-owned dam with a primary purpose of serving as a Fish and Wildlife Pond. Completed in 1990, this Earth-type dam stands at a height of 12 feet and has a storage capacity of 260 acre-feet. With a surface area of 37 acres and a drainage area of 1 square mile, Rundle Du is regulated by the Forest Service and is equipped with an uncontrolled spillway 60 feet wide.

Despite being classified with a low hazard potential, Rundle Du does pose a moderate risk due to its age and condition, which is currently labeled as "Not Rated." The dam, situated on the South Branch Philbrick stream, plays a crucial role in managing water resources and supporting wildlife in the region. With its strategic location and design, Rundle Du contributes to the conservation efforts and recreational activities in the area.

Water resource and climate enthusiasts are drawn to Rundle Du for its ecological significance and the opportunities it provides for wildlife habitat and outdoor recreation. As a Federal-owned structure, it is maintained by the Forest Service and undergoes regular inspections to ensure its safety and effectiveness. The dam's strategic location, design features, and storage capacity make it a valuable asset in the management of water resources in North Dakota, showcasing the importance of sustainable infrastructure for both environmental and recreational purposes.