South Platte River

About South Platte River

The South Platte River forms in Park County, Colorado, from the confluence of the South Fork and Middle Fork, then flows through Colorado and Nebraska before joining the North Platte. This is a cold tailwater fishery, fed by large reservoirs like Spinney Mountain, Eleven Mile, and Chatfield. The river features massive granite formations and boulders, particularly noticeable as it cuts through canyons such as Cheesman Canyon, Eleven Mile Canyon, and Waterton Canyon. Anglers will find varied water, from deep pools to swift runs around these rock structures. Sections like the Dream Stream, located between Spinney and Eleven Mile Reservoirs, are particularly well-known, as are the stretches through Cheesman Canyon and Deckers. Access points are crucial along the South Platte; use a dedicated fly fishing map or mobile app to locate them. The South Platte River holds abundant trout, including brown, rainbow, and cutthroat. Trophy-sized trout are common, especially large rainbow and brown trout in the Dream Stream section. Some parts of the river hold as many as 7,000 fish per mile, indicating dense populations. The cold tailwaters provide consistent food sources year-round, making the fish active. Focus your efforts on the seams and current breaks around the granite boulders and other structure. These fish will often hold in the deeper pockets and runs, especially in the canyon sections. A tight-line nymphing approach is often effective, allowing you to get flies down quickly in the swift, cold water. Pay attention to the water clarity and adjust your tippet size accordingly; these fish can be particular. When fishing the South Platte, consider the depth and speed of the water. In the faster, deeper runs, use enough weight to get your flies to the bottom quickly. Target the slower water behind large rocks or in eddies where fish can hold out of the main current. The varied terrain means you'll encounter everything from wide, open stretches to tight, technical canyon water. Be prepared to wade carefully, as the river bottom can be uneven around the granite. Working the water thoroughly in each section will increase your chances, as fish can be concentrated in specific holding lies. Always bring a reliable wading staff for safety and stability on the South Platte.