West is a private water supply dam located in the Big Muddy Oil Field in Converse, Wyoming. Completed in 1950, this Earth dam stands at a height of 40 feet and has a storage capacity of 111 acre-feet. The dam is primarily used for water supply purposes and is regulated by the State of Wyoming, with inspections conducted periodically to ensure its structural integrity.

Despite its low hazard potential, West has been assessed to be in poor condition as of July 2019. The dam's spillway type is uncontrolled, with a width of 100 feet, and it is situated on the West Fork Lonetree Creek. In the event of an emergency, the dam does not have outlet gates, raising concerns about its ability to safely release excess water. Overall, the risk assessment for West is moderate, highlighting the importance of ongoing monitoring and maintenance to mitigate potential hazards and ensure the continued functionality of this essential water resource infrastructure.