The Beaverhead River, originating from Clark Canyon Dam near Dillon, Montana, is renowned for its exceptional fly fishing opportunities. Spanning approximately 69 miles, this tailwater fishery boasts a high density of large brown and rainbow trout, making it a prime destination for anglers seeking both quantity and quality catches. The river's consistent cold water and abundant insect life contribute to its reputation as a top-tier trout habitat.
The Beaverhead River can be divided into distinct sections, each offering unique fishing experiences. The upper section, from Clark Canyon Dam to Barrett's Diversion Dam, is characterized by swift currents and tight bends, making it ideal for floating. Below Barrett's Dam, the river meanders through agricultural valleys with slower flows, providing excellent wading opportunities. Each section presents its own challenges and rewards, catering to various angling preferences.
Anglers on the Beaverhead River primarily target brown and rainbow trout. The river is renowned for its large brown trout, with many specimens exceeding 20 inches. Rainbow trout are also abundant, offering vigorous fights and averaging around 17 inches. Additionally, the river supports populations of mountain whitefish, providing diverse fishing opportunities throughout the year.
The trout in the Beaverhead River exhibit feeding behaviors closely tied to the river's prolific insect hatches. Throughout the year, they feed on a variety of aquatic insects, including mayflies, caddisflies, and stoneflies. During summer months, terrestrial insects like grasshoppers and crane flies become significant food sources. Understanding these feeding patterns is crucial for selecting effective fly patterns and fishing strategies.
Successful fishing on the Beaverhead River often involves a combination of techniques. Nymphing with small, hatch-matching patterns is particularly effective, especially in the upper reaches. Dry fly fishing becomes productive during prolific hatches, with patterns like PMDs and caddisflies yielding good results. Streamer fishing can also be rewarding, particularly in the fall when brown trout are more aggressive.
Several spots along the Beaverhead River are renowned for their fishing potential. The stretch from Clark Canyon Dam to High Bridge is known for its large trout and challenging conditions. Below Barrett's Diversion Dam, the river offers excellent dry fly fishing opportunities. Poindexter Slough, a spring-fed channel near Dillon, provides a unique fishing experience with its clear waters and abundant trout.
Access to the Beaverhead River is facilitated by several points along its course. High Bridge and Henneberry Bridge offer convenient entry to the upper sections. Grasshopper Creek Access and Barrett's Park provide access to the middle stretches. For the lower river, Poindexter Slough and various county bridges near Dillon serve as entry points. Always ensure you have the necessary permissions and respect private property boundaries.
A 9-foot, 5-weight fly rod with floating line is versatile for most conditions on the Beaverhead River. For larger nymphs and streamers, a 6-weight rod with a sink-tip line is advisable. Tippets ranging from 3X to 6X are suitable, depending on fly size and water clarity. Waders with good traction are essential, especially in sections with swift currents and slippery substrates.
Preserving the health of the Beaverhead River is vital for sustaining its renowned trout populations. Anglers are encouraged to practice catch-and-release, handle fish with care, and minimize their environmental impact. Staying informed about local regulations and participating in conservation initiatives help ensure the river remains a thriving fishery for future generations.
Safety is paramount when fishing the Beaverhead River. Be aware of swift currents, especially during high flow periods. The river's banks are lined with willows, making casting challenging and requiring caution to avoid entanglement. Additionally, the area is known for its population of rattlesnakes; always watch your step and be vigilant in grassy or rocky areas.
Several local fly shops provide valuable resources for anglers on the Beaverhead River. The Tackle Shop in Ennis offers up-to-date fishing reports, guided trips, and a comprehensive selection of gear. Sunrise Fly Shop in Melrose provides guided float trips and a well-stocked fly shop. These establishments offer local expertise and can enhance your fishing experience.
Supporting conservation organizations helps maintain the health of the Beaverhead River ecosystem. The Montana Fish, Wildlife & Parks department oversees the management and conservation of the state's fisheries. Additionally, local chapters of Trout Unlimited engage in habitat restoration and conservation efforts, ensuring the river's vitality for future generations.