The Sun River is a significant waterway in central Montana that flows for over 100 miles before joining the Missouri River near Great Falls. Beginning at the confluence of the North and South Forks on the eastern edge of the Bob Marshall Wilderness Complex, the river passes through Gibson Reservoir and Willow Creek Reservoir along its journey. Despite being somewhat overlooked by visiting anglers due to Montana's abundance of trout streams, the Sun River offers excellent fishing opportunities in a scenic, uncrowded setting. While irrigation demands and fluctuating water levels can present challenges for fish populations, the river maintains good fishing, particularly in its upper reaches. With diverse habitats ranging from mountain canyon sections to prairie flatlands, the Sun River provides anglers with a variety of fishing experiences in a picturesque Montana landscape.