Fly Hatch Chart for the Clark's Fork of the Yellowstone River, Wyoming

Fly Hatch Chart for the Clark's Fork of the Yellowstone River, Wyoming

The Hatch Try These Flies

Time of Year

Attractor Trout Flies

Learn About Attractor Trout Flies

Attractor Nymphs
Attractor Dry Flies
June-October

Baetis or Blue-winged Olive

Learn About The Baetis Mayfly Hatch

 

Baetis Nymphs and Emergers
Baetis Dry Flies

All Year

Caddis Flies

Learn About The Caddis Hatch

Caddis Larva and Pupa

Caddis Dry Flies
May-October

Golden Stonefly Trout Fly Patterns

Learn More about the Golden Stonefly Hatch

Nymphs

Adults

July-August
Nymphs and Emergers: Dry Flies:
August-September
Nymphs: Green Drake Emergers Dry Flies:
July-August
Nymphs (Size #18-22): Flav Emerger Patterns (Size #18-22): Dry Flies (Size #18-22):
July-August
Nymphs: Little Yellow Sally Adult Stoneflies:
April
Midge Larva
Midge Pupa or Emergers
Midge Adult Dry Flies
All Year

Fall (October) Caddis

Nymphs: Dry Flies:
April
Nymphs: Emergers: Dries:
August-October
Nymphs:
PMD Emergers: Dries:
July-October
April-May, September-November
July-October