Bison, also known as Owens, is a state-owned earth dam located in Perkins, South Dakota. Completed in 1947, this dam stands at a height of 24 feet and spans a length of 2300 feet, with a maximum storage capacity of 2140 acre-feet. It is situated on Thunder Butte Creek and falls under the regulatory jurisdiction of the South Dakota Department of Agriculture and Natural Resources.

The dam's primary purpose and associated structures are not specified, but it is designed with a buttress core type and soil foundation. With a low hazard potential and a moderate risk assessment rating, Bison has a spillway width of 200 feet and a maximum discharge capacity of 11,046 cubic feet per second. The dam has not been rated for its condition, but it undergoes inspections every three years, with the last one conducted in November 2018.

Owned and regulated by the state, Bison serves as a vital water resource management structure in the region. Its strategic location and design make it a key player in maintaining water supply, flood control, and environmental sustainability in the area. For water resource and climate enthusiasts, Bison represents a fascinating example of infrastructure that plays a crucial role in managing water resources and mitigating potential risks associated with extreme weather events.