Firehole River - Spring Fly Box

Fish the Firehole like you know it — because now you do. The Firehole River Spring Fly Box is hand-curated specifically for the conditions, hatches, and trout behavior you'll encounter on the Firehole from May through early June. While every other river in the park is blown out with snowmelt, the Firehole's geothermal input keeps it clear and fishable from opener. It's the first — and often only — river worth fishing in Yellowstone in early May. This box is built around the Firehole's spring ...