Belle Fourche, also known as Orman, is a federal-owned dam located in Butte, South Dakota. Built in 1911 by the Bureau of Reclamation, this Earth-type dam stands at a height of 122 feet and spans a length of 6,262 feet, creating a reservoir with a maximum storage capacity of 278,216 acre-feet. The primary purpose of Belle Fourche Dam is irrigation, supporting agriculture in the region by providing water from the Owl Creek.

With a hazard potential classified as high, Belle Fourche Dam is closely monitored by the Bureau of Reclamation, which oversees its operations, inspections, and regulatory compliance. Despite its age, the dam has not undergone recent condition assessments, but emergency action plans have been prepared and updated periodically. The dam's location within the Omaha District and its association with the DOI BR highlight its significance in water resource management and climate adaptation efforts in South Dakota. Belle Fourche Dam continues to play a vital role in water supply for irrigation and recreation, contributing to the sustainable development of the region.