Fly Fishing North Fork Shoshone River - Wapiti

Fly fishing the North Fork Shoshone River upstream of Buffalo Bill Reservoir immerses anglers in a classic Western freestone set against the towering cliffs and timbered slopes of the Absaroka Range. Flowing out of Yellowstone National Park, the North Fork rushes through dramatic canyon country and open valleys on its way east to Cody, WY. With its mix of native cutthroat, strong rainbows, and trophy browns, this section is one of the premier trout fisheries in Wyoming.

The North Fork is defined by its freestone character and rugged gradient. Riffles and fast runs dominate, with plunge pools and boulder-strewn banks creating diverse holding water. The upper reaches near Yellowstone National Park boundary are narrower and wilder, while the middle section near Wapiti opens into long riffle-run sequences. Its flows are snowmelt-driven, meaning water levels and clarity shift significantly with the seasons. In summer and fall, when flows stabilize, the river becomes highly productive for wading anglers.

Trout populations are both healthy and diverse. The North Fork supports Yellowstone cutthroat trout in the upper stretches, wild rainbows throughout, and large brown trout that migrate up from Buffalo Bill Reservoir. Anglers regularly find trout in the 12–18 inch range, but browns over 20 inches are not uncommon, particularly in fall when they move upstream to spawn. This combination of species makes the North Fork one of the best chances in Wyoming to encounter a trophy fish in a wild, scenic setting.

Hatches are prolific and seasonally diverse. Spring and fall bring dependable blue-winged olive hatches and midges, while June and July see strong stonefly activity, including golden stones and salmonflies. Summer months feature caddis, PMDs, yellow sallies, and terrestrials like grasshoppers and beetles. By late summer and fall, trout turn aggressive toward streamers, especially browns staging for the spawn. The river’s wild freestone flows mean hatch timing varies year to year, but patient anglers can often find consistent surface activity.

Flows between 300 and 800 CFS provide the best wading opportunities. Above this range, the river becomes pushy and difficult to cross, though side channels can still be productive. During runoff, conditions are typically too high and off-color, but as flows recede, the North Fork offers months of excellent fishing. Access is good along U.S. Highway 14/16/20, with multiple public pull-offs, campgrounds, and U.S. Forest Service lands providing entry. Scenic landmarks like Wapiti Valley and the dramatic cliffs of the Absarokas add to the experience.

Fly fishing the North Fork Shoshone River upstream of Buffalo Bill Reservoir is a must for anglers seeking both wild trout and unforgettable scenery. With its blend of prolific hatches, big-fish potential, and easy highway access, it represents the very best of Wyoming’s freestone fisheries.