Fly Fishing Clark Fork - Missoula

The Clark Fork River near Missoula represents the lower section of this excellent freestone fishery, flowing through the heart of Montana's second-largest city while maintaining excellent trout populations and diverse fishing opportunities. This section is famous for its prolific mayfly and caddis hatches, excellent dry fly fishing, and large, healthy trout that draw anglers from around the region. The combination of good water quality, abundant insect life, and excellent access makes this a popular destination for both local and visiting anglers.

The Missoula section flows through relatively flat terrain, creating a mix of fast riffles, deep runs, and classic freestone pools. The river bottom consists of cobble, gravel, and some sand, providing diverse habitat for trout and aquatic insects. The gradient is moderate to gentle, creating excellent holding water throughout the section. The banks are lined with cottonwoods, willows, and urban development, providing essential cover and shade. The water clarity is typically good, though it can become slightly off-color during high flows or spring runoff. The lower Clark Fork below Missoula offers the best "match the hatch" dry fly fishing with prolific mayfly and caddis hatches running June through October.

This section supports excellent populations of wild brown trout, rainbow trout, and native westslope cutthroat trout, with fish typically ranging from 12 to 16 inches. The brown trout are particularly large and healthy, often exceeding 18 inches and occasionally reaching 22+ inches. Rainbow trout add variety and are known for their acrobatic fights. Native westslope cutthroat trout are present and are protected by catch-and-release regulations. The lower Clark Fork below Missoula holds larger fish averaging 12-16 inches with daily opportunities for fish over 20 inches. Mountain whitefish are also abundant and provide consistent action.

Hatch activity is exceptional throughout the season, with prolific mayfly and caddis hatches running June through October. The section is famous for its excellent dry fly fishing, with various mayfly species (PMDs, BWO, Tricos) providing consistent opportunities. Various caddis species provide excellent evening fishing throughout the summer. Blue-winged Olives emerge in spring and fall, PMDs appear in mid-summer, and various mayfly species provide consistent opportunities. Terrestrial patterns become extremely effective from mid-summer through early fall, with hoppers, ants, and beetles producing excellent results when fished tight to the banks. Streamer fishing can be particularly productive, especially when targeting larger brown trout. Nymphing remains productive year-round, with Flashback Baetis (#16-18) and bead head copper johns being particularly effective.

Optimal wading flows for the Missoula section range from 500 to 1500 CFS, with flows above 3000 CFS becoming challenging for safe wading. Typical flows vary by season: 1000-2000 CFS during summer, with lower flows in fall/winter. The river is excellent for float fishing in drift boats and rafts, with numerous access points making it easy to plan day trips. Access is excellent throughout Missoula, with numerous public access points, fishing access sites, and pullouts throughout the section. The city of Missoula provides excellent services, including fly shops, guides, and accommodations. The nearest major commercial airport is Missoula International (MSO), approximately 15-30 minutes away.

The Clark Fork River near Missoula offers excellent fly fishing opportunities in an urban setting that maintains excellent trout populations and diverse fishing opportunities. Its combination of healthy wild trout populations, prolific hatches, and excellent access makes it an ideal destination for anglers seeking a classic Montana fly fishing experience. The section's reputation for excellent dry fly fishing and large, healthy trout makes it a popular choice for both local and visiting anglers.