clarion river Pennsylvania

The Clarion River, located in northwestern Pennsylvania, flows on the southern border of the Allegheny National Forest and offers a scenic and diverse fishery for fly anglers. Once heavily polluted, the river has undergone significant restoration and is now recognized for its clean waters, abundant wildlife, and excellent fishing opportunities.

Fly Fishing the Clarion River: The Clarion is home to wild and stocked trout, with productive waters from the confluence of the East and West Branches down to Cook Forest State Park and beyond. Anglers can find brown trout, rainbow trout, and some brook trout, with the best trout fishing in the colder upper sections where spring-fed tributaries provide ideal conditions.

Hatches & Flies: The river experiences diverse insect hatches, making it an exciting dry-fly destination in the right conditions. Key hatches include:

  • Blue-Winged Olives (BWO) – Spring and fall

  • Sulphurs – Late spring into early summer

  • Caddis (various species) – Spring through fall

  • March Browns & Hendricksons – Mid to late spring

  • Terrestrials (ants, beetles, hoppers) – Summer months

  • Tricos – Late summer mornings

Best Times & Tactics

  • Spring and fall are prime times for trout, with ideal water temperatures and active hatches.

  • Summer can be productive early and late in the day, especially near cooler tributaries.

  • Streamers work well for targeting larger brown trout, especially in lower light conditions.

  • Nymphing is effective year-round, particularly with Pheasant Tails, Hare’s Ears, and Caddis Pupae.

If you have any questions, drop me a line here.

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 Read more here about the Clarion River.

clarion river cabin and drift boat package

Join us for an unforgettable adventure. Enjoy two days of guided fly fishing on the Clarion River Trophy Trout section in our float boat, complete with cabin.

For more information you can click here.

A rustic wooden cabin with a porch in a forest setting. A wagon wheel decorates the railing, and there are small evergreen trees and shrubs around the cabin.
A cozy fireplace with a brick interior, a wooden mantle, and a protective metal screen, featuring a warm fire inside.
Bathroom with shower and toilet
Man holding a brown trout in the Clarion river during winter, with snow on the riverbank and bare trees visible; overcast sky above.
Cozy cabin interior with wooden furniture, kitchen appliances, and a seating area, featuring exposed beams and natural lighting from windows.
Rustic bedroom with wooden bed frame, white bedding, patterned blanket, side table with lamp, wall art, and wooden blinds.
Rustic bedroom with a wooden bed frame, side table with a lamp, and patterned bedspread.