Fly Fishing Rock Creek - Clinton

Rock Creek near Clinton offers excellent freestone fly fishing in one of Montana's most accessible and productive mountain streams, flowing through the heart of the Lolo National Forest with over 30 miles of public access. This section is characterized by fast-moving pocketwater, deep pools, and classic freestone runs that create diverse fishing opportunities throughout the season. The combination of excellent water quality, abundant wild trout, and exceptional access makes this a popular destination for both local and visiting anglers seeking a classic Montana mountain stream experience.

The Clinton section flows through a mix of open meadows and conifer forests, creating a variety of water types including fast riffles, deep runs, classic freestone pools, and extensive pocketwater. The river bottom consists of cobble, boulders, and gravel, providing excellent habitat for both trout and aquatic insects. The gradient is moderate to steep in places, creating excellent holding water with fast seams and deep pools. The banks are lined with willows, aspens, and pines, providing essential cover and shade. The water clarity is typically excellent, with cold, highly oxygenated water that supports healthy trout populations. The river is relatively narrow, making it easier to find wading spots across the river, except during high water periods or in areas with rapids and deep pools.

This section supports healthy populations of wild brown trout, rainbow trout, and native westslope cutthroat trout, with fish typically ranging from 10 to 14 inches in the upper sections. The brown trout are particularly aggressive and opportunistic, often responding well to attractor patterns and terrestrials. Rainbow trout and cutthroat trout are protected by catch-and-release regulations. Bull trout are also present and are protected. Brook trout are present but less common. The upper section (origin to Highway 348 Bridge) has smaller fish than downstream sections, which hold larger trout populations. Trophy fish exceeding 18 inches are possible, with fish over 20 inches occasionally caught. Mountain whitefish are also abundant and provide consistent action.

Hatch activity is good throughout the season, beginning after spring runoff subsides, typically in late May or early June. The section benefits from excellent mayfly and caddis hatches during summer, with active hatches including terrestrials and tricos providing consistent opportunities. Blue-winged Olives emerge in spring and fall, PMDs appear in mid-summer, and various caddis species provide excellent evening fishing. 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. Nymphing remains productive year-round, with Stimulators (sizes 8-14), Elk Wing Caddis (12-16), Bead Head Hare's Ear Nymphs (12-16), and various other patterns in sizes 10-18 being effective. Both dry fly and nymph/streamer subsurface techniques are productive.

Optimal wading flows for the Clinton section range from 150 to 500 CFS, with flows above 800 CFS becoming challenging for safe wading. The river is relatively narrow, making it easier to find wading spots across the river, except during high water periods or in areas with rapids and deep pools. The section is closed to fishing from boats/vessels July 1 through Nov. 30, requiring wade fishing only during this period. Over 30 miles of river flows through National Forest land with excellent access via Rock Creek Road, allowing anglers to spread out and find less-pressured sections by walking away from obvious access points. Access is excellent along Rock Creek Road, with numerous public access points, fishing access sites, and pullouts throughout the section. The town of Clinton provides limited services, with additional services available in Missoula. The nearest major commercial airport is Missoula International (MSO), approximately 30-45 minutes away.

Rock Creek near Clinton offers excellent fly fishing opportunities in one of Montana's most accessible mountain streams. Its combination of healthy wild trout populations, diverse water types, and over 30 miles of National Forest access makes it an ideal destination for anglers seeking a classic Montana mountain stream experience. The section's reputation for consistent fishing, excellent hatches, and the ability to find less-pressured water by walking away from access points makes it a popular choice for both local and visiting anglers.