Beaverhead River
Flowing out of Clark Canyon Reservoir, the Beaverhead River begins its roughly 70-mile journey. It is known as one of the best wild trout tailwater fisheries in the country, boasting large rainbow and brown trout. With fish counts ranging between 1,500 and 3,000 fish per mile, the Beaverhead offers opportunity around every bend.
Sections & Hatches
Upper Beaverhead
Just below the Clark Canyon Dam, thousands of trout sit basking in the cold, crystal-clear water. These fish thrive on the nutrient-rich water, which brings prolific hatches and ample feeding opportunities. Like many tailwaters, the Beaverhead River is primarily known as a nymphing fishery. It is not uncommon to consistently hook fish in the 16–20 inch range taking flies in the size 18 to 22 range just below the dam.
Lower Beaverhead
As the river flows north toward Twin Bridges, MT, it meanders through farmland where grasshoppers and crickets swam the banks. As these terrestrial insects gain numbers throughout the summer, they become a major food source for fish on the lower Beaverhead. Floating large foam patterns to mimic these insects often proves to be successful and makes for an exciting take. Fish in this section commonly range from 12–16 inches, with larger fish often in the mix.
Hatches
Blue Winged Olive - March and September
Pale Morning Dun - July and Augest
Caddis(Various) - June, July & Augest
Yellow Sally- July and Augest.
Crane Flies - Augest and September