Blue Mesa Reservoir is the largest body of water in Colorado, located in the Gunnison National Forest. It was created by the construction of the Blue Mesa Dam on the Gunnison River and serves multiple purposes, including water storage, flood control, and recreation. The reservoir covers approximately 1,500 acres and offers various activities such as fishing, boating, and camping. It is home to several fish species, including trout and salmon, making it a popular destination for anglers. The surrounding area features stunning mountain views and opportunities for wildlife observation.