Rock Creek
Montana · Missoula County
Brown TroutRainbow TroutCutthroat TroutBrook Trout
Top 5 Fishing Locations on Rock Creek
Missoula Canyon
Rock Creek Canyon near Missoula is one of Montana's premier wilderness trout destinations with exceptional wild rainbow brown and cutthroat trout. The canyon section is accessible by road but feels remote with dramatic rock walls. Attractor dry flies produce exciting fishing throughout summer in this classic Montana water.
💧 Ideal flow: 200–600 CFS. The upper Rock Creek canyon fishes best at moderate flows — the famous salmonfly hatch peaks at rising flows in late May.
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Grizzly Campground
Near Grizzly Campground Rock Creek offers excellent wade fishing with a good mix of species in a beautiful forested setting. Wild cutthroat and rainbow trout up to 18 inches are present throughout. Evening Pale Morning Dun and caddis hatches from July through September create excellent dry fly opportunities.
💧 Ideal flow: 150–500 CFS. The lower canyon fishes well at moderate flows with roadside access throughout.
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Harry's Flat
Harry's Flat is one of Rock Creek's most famous locations — a broad easily waded stretch with excellent wild trout and good hatch activity. Brown trout concentrate in the deeper runs adjacent to the flat. This is classic Montana fishing at its most accessible.
💧 Ideal flow: 200–500 CFS. The confluence area fishes best at moderate stable flows — all four trout species present throughout.
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Upper Section near Philipsburg
The upper Rock Creek above the canyon near Philipsburg flows through high mountain terrain with excellent wild cutthroat and brook trout. Less fishing pressure than the more accessible canyon sections. The upper creek's smaller size rewards stalking and careful casting.
💧 Ideal flow: 100–400 CFS. Fishes best at lower late-summer flows when water clears and fish become more concentrated.
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East Fork Confluence
Where the East Fork joins Rock Creek creates a natural concentration area for wild trout seeking the temperature and nutrient mixing. Large cutthroat and brown trout use this confluence as a seasonal feeding station. The East Fork drainage also provides excellent fishing in its own right.
💧 Ideal flow: 150–400 CFS. Upper headwaters are small water — fish at lower flows for native cutthroat and bull trout in the most remote sections.
📊 Get Location Flow Report
About Rock Creek Fishing
Rock Creek is a pristine wild tributary of the Clark Fork located east of Missoula, prized for its exceptional water quality and minimal development that has preserved its character as a genuine backcountry fishery. The river's roadside access throughout its scenic canyon makes world-class trout fishing accessible without requiring a backcountry trek, and the water's clarity and health support robust populations of all four Montana trout species.
Best Time to Fish Rock Creek
Rock Creek's most famous feature is its exceptional salmonfly hatch, which peaks in late May and June, drawing anglers from across the region to fish large stonefly patterns during this prolific emergence. Outside the salmonfly season, consistent mayfly and caddis hatches provide year-round opportunities, with spring and fall offering excellent dry fly fishing when crowds thin and water conditions stabilize.
Species
Rock Creek holds brown trout and rainbow trout as its dominant species, with both responding aggressively to properly presented dry flies and nymphs throughout the season. The river's cold, clean water also supports populations of cutthroat trout and the rare bull trout, making Rock Creek one of the few Montana rivers where anglers have a genuine chance to encounter all four species on a single outing.
Access & Regulations
Always check the current Montana fishing regulations before heading out. Regulations on Rock Creek may include special catch-and-release sections, artificial-only stretches, and seasonal closures. A valid Montana fishing license is required.
Live River Data
Trout Bible pulls live flow and gauge data directly from the USGS National Water Information System. Current CFS (cubic feet per second) and gauge height readings are updated every 15–60 minutes, giving you the most accurate picture of conditions before you make the drive.