Clarion River
Insights
The Clarion is a recovery story you can wade into. Through the 1980s this was effectively dead water — a paper mill at Johnsonburg and decades of acid-mine seeps out of the surrounding coal country left it too acidic and too warm to hold trout. A mill upgrade in the 1990s, a long run of acid-mine remediation projects, and a 1997 federal Wild & Scenic designation turned it around, and in 2019 Pennsylvania named it River of the Year. Today the upper river from Johnsonburg down through Ridgway is a genuine brown trout fishery — the Fish & Boat Commission backstops it with summer fingerling plants, but the fish hold over, reproduce, and grow, and the Catch-and-Release stretch below Johnsonburg regularly gives up browns past 20 inches.
It fishes like a medium freestone — roughly 70 feet wide up top, a mix of riffles, pools, and pocket water, wadeable in the upper reaches and better floated in a drift boat down through the trophy water toward Cook Forest. The two headwater branches set the character: the East Branch below the Corps' East Branch (Elk) Dam is a cold, bottom-release tailwater that stays in the mid-50s°F all summer, while the warmer, caddis-heavy West Branch produces the river's signature Green Drake emergence around June 1. Below their junction at Johnsonburg the mainstem runs cold enough for trout down to about Ridgway, then warms progressively. Be honest about the bug life: post-recovery it's still rebuilding, so the hatches are decent rather than blanket — March Browns and Hendricksons in spring, Sulphurs in May, Green Drakes at the end of the month, caddis all season — and a lot of the fishing is prospecting with attractors, streamers for the big browns, and euro-nymphing through the pockets.
Be honest about the seasons and the geography too. Spring (April–May) and fall (September–October) are prime; by July the mainstem below Ridgway pushes past 70°F and the fishery flips to smallmouth bass — genuinely good smallmouth from Cook Forest down toward Piney. The East Branch tailwater and the cold tributary mouths are the summer trout refuges. Access is easy and public-heavy: Route 219 shadows the upper river, Cook Forest State Park and the Allegheny National Forest own long stretches of bank, and PA's high-water-mark law keeps you legal within the banks even where private land backs the river. Crowds are modest by Penns Creek standards — this is quiet, wild country — but Cook Forest fills with paddlers and tubers on summer weekends, so fish the trout water up high early and late.
Species
- Brown Trout
- Brook Trout
- Smallmouth Bass
| Species | Abundance | Best Season | Size | Notes |
|---|---|---|---|---|
| Brown Trout | Primary | Apr-May, Sep-Oct | 10-20"+ | The headline fish. A wild, holdover population backstopped by PFBC summer fingerling plants — the fish reproduce and grow rather than getting fished out each spring. The Johnsonburg-to-Ridgway Catch-and-Release water gives up 20"-plus browns regularly, with the biggest fish moving in fall pre-spawn. Streamers for the trophies, dries during the hatch windows. |
| Brook Trout | Common | Apr-Jun, Sep-Oct | 6-11" | Native brookies in the cold tributary mouths and the East Branch delayed-harvest reach below the dam, drifting into the mainstem up high when the water stays cold. |
| Smallmouth Bass | Common | Jun-Sep | 8-16" | The summer fishery below Ridgway. Once the mainstem warms past 70°F it flips to smallmouth, and the water from Cook Forest/Cooksburg down toward Piney is a genuinely good smallmouth float on poppers and subsurface flies. |
Sections
Johnsonburg to Ridgway (Trophy Water — C&R All-Tackle)
Wade & FloatBrown Trout · Rainbow Trout
Ridgway to Cook Forest / Cooksburg (Transition)
Wade & FloatBrook Trout · Brown Trout · Rainbow Trout · Smallmouth
Cooksburg to Piney (Smallmouth / Warmwater)
FloatRainbow Trout · Smallmouth
Regulations
PFBC special-regulation water up top: a Catch-and-Release, All-Tackle reach from Johnsonburg down to Ridgway (the trophy-brown water), grading into standard Stocked Trout Waters regulations downstream. The East Branch tributary carries its own delayed-harvest reach below the dam.
Access & Logistics
Getting There
Ridgway, PA