Sinclair Reservoir is a large body of water located in southern Wyoming, primarily formed by the North Platte River. It serves as a crucial resource for irrigation, recreation, and wildlife habitat in the region. The reservoir covers approximately 3,000 acres and is popular for activities such as fishing, boating, and camping. The reservoir is managed by the U.S. Bureau of Reclamation and plays a significant role in local water management. It is also home to various fish species, including trout and walleye, making it a favored spot for anglers. The surrounding area offers scenic views and opportunities for outdoor exploration.