Lake Granby is the third largest body of water in Colorado.It was created by the erection of Granby Dam, completed in 1950, as part of the Colorado-Big Thompson Project Water from Lake Granby is pumped via the Farr Pump plant though a pipeline that empties into a canal connected to Shadow Mountain Reservoir. On its own, Lake Granby contains approximately 40 miles of shoreline. The lake is popular with anglers and is continually stocked with Trout and Kokanee Salmon.