Bischoff is a privately owned irrigation dam located in Big Horn, Wyoming, along Willow Creek. Completed in 1977, this earth dam stands at a height of 56 feet with a hydraulic height of 51 feet and a length of 680 feet. It serves multiple purposes including irrigation, fire protection, stock water, and small fish pond support. With a normal storage capacity of 101 acre-feet and a maximum storage of 126 acre-feet, Bischoff provides crucial water resources for the surrounding area.

Although Bischoff has a low hazard potential, its condition assessment is marked as poor, with the last inspection in 2017 revealing the need for potential improvements. The dam's spillway is uncontrolled with a width of 2 feet, and it is regulated by the Wyoming State Engineer's Office. Despite its moderate risk level, Bischoff plays a vital role in water management and agriculture in the region. With its proximity to the Omaha District and congressional representation by Liz Cheney, Bischoff stands as a key infrastructure for water resource and climate enthusiasts to monitor and support for sustainable water management practices in Wyoming.