The Shear Enlargement of Cochrun is a private dam located in Farmstead, Wyoming, designed by Kenny Rathbun and completed in 2017. This earth dam, standing at a height of 32 feet with a structural height of 35 feet, serves multiple purposes including fire protection, stock and small fish pond, and fish and wildlife habitat. It has a storage capacity of 158 acre-feet and covers a surface area of 13 acres.

Situated on Cochrun Draw, this dam is regulated and inspected by the Wyoming State Engineer's Office, ensuring its compliance with state requirements for safety and functionality. With a low hazard potential and moderate risk assessment, the Shear Enlargement of Cochrun plays a crucial role in water resource management and wildlife conservation in the area. Its controlled spillway and other outlet gates provide necessary mechanisms for managing water levels and ensuring the safety of the structure.

Despite its remote location in Crook County, Wyoming, the Shear Enlargement of Cochrun has a significant impact on the local ecosystem and water resources. As a key contributor to fire protection, livestock watering, and wildlife habitat, this dam stands as a testament to human ingenuity in harnessing natural resources for the benefit of both people and the environment.