Fly Hatch Chart for the Williams Fork River, Colorado

The Hatch

Try These Flies

Time of Year

Attractor Trout Flies

Learn About Attractor Trout Flies

Attractor Nymphs
Attractor Dry Flies

April-October

Baetis or Blue-winged Olive

Learn About The Baetis Mayfly Hatch

Baetis Nymphs and Emergers
Baetis Dry Flies

April-May, September-November

Caddis Flies

Learn About The Caddis Hatch

Caddis Larva and Pupa

Caddis Dry Flies

April-September

Golden Stonefly Trout Fly Patterns

Learn More about the Golden Stonefly Hatch

June-August

Green Drake Mayfly

July-August

Midges or Chironomids

Learn About The Midge or Chironomid Hatch

Midge Larva
Midge Pupa or Emergers
Midge Adult Dry Flies

All Year

Pale Morning Dun or PMD (Ephemerella)

Learn About The PMD Hatch

PMD Nymphs and Emergers
Mayfly Emergers
PMD Dun & Spinner

July-August

Red Quill Mayfly

July-August

Scuds & Shrimp

All Year

Salmonfly, Skwala and Dark Stonefly

Learn More About The Stonefly Hatch

May-June

Streamers

Wooly Buggers

April-May, September-November

Terrestrials

July-September

Trico Mayfly

Learn About The Trico Mayfly Hatch

August-October