Hatch Chart/Fly Patterns

Bighorn River Hatch Chart/Bighorn River Fly Patterns

Scud - Freshwater Shrimp

Scuds are fresh water shrimp and are plentiful in the Bighorn.  Scud patterns in grey, pink, orange are effective. 

Fishing Information and Fly Patterns

Bighorn River Nymph Fishing

Sowbug - Crustacean

The Aquatic Sowbug has seven pairs of legs and crawls around on the bottom and on plants, eating the vegetation.  They are a very important source of food for Bighorn trout and sowbug patterns (Soft Hackle Sowbugs, Ray Charles) are often effective. 

Fishing Information and Fly Patterns

Aquatic Worm

Aquatic Worms are very abundant in tailwater fisheries, especially the Bighorn. 

Effective Year Round

Fishing Information and Fly Patterns

Bighorn River Streamer Fishing

Small Trout

Baitfish – Bighorn trout eat other Bighorn trout, especially the big ones. 

Effective Year Round

Fishing Information and Fly Patterns

Adult Midge

Midges are plentiful on the Bighorn and in the winter and early spring are the predominant hatch.  Black is the predominant color, but Bighorn midges can also be olive, cream, red, and root beer.

Hatch: Year Round     Best: February – April

Hatch Information and Fly Patterns

BWO Adult

Blue Winged Olives – Bwo’s are the most significant Mayfly hatch on the Bighorn River.  April and May are the primetime for baetis hatches and again in the fall.
Spring Hatch: April – June         Fall: September – November

Pale Morning Dun

The Pale Morning Dun hatch declined a lot during the low water years, but is bouncing back.  When the water temperature is right typically in the low 50′s,  PMD’s will hatch as far up as the 3-mile access.  The lower river with it’s warmer water temperatures has a much more consistent hatch.
Hatch: June - August

Hatch Information and Best Bighorn Flies

Trico Spinner Nick Pionessa Photo

Tricos at one time were probably the most famous hatch on the Bighorn.  This hatch has re-emerged in the past few years and has become much more reliable.
Hatch: August – September

Black Caddis

Black Caddis are the dominant Caddis species on the Bighorn and one of the most consistent hatches year in and year out.  Hatch: July – September
Tan Caddis are the most consistent on the lower river. Fishing the larva, pupa and adult imitations can all be effective.
Hatch:  May – July

Hatch Information and Fly Patterns

bighorn river yellow sally

Sally Adult

The Yellow Sally hatch is the only stonefly hatch we fish on the Bighorn.  This hatch mad a huge resurgence on the Bighorn in 2010. 

Hatch: June – July

Hatch Information and Fly Patterns

Flying Ant

Flying Ants & Beetles – At the height of the summer season trout start looking to the surface for terrestrials blowing into the water.   The trout can get very keyed into these big morsels at the right times. 

Fishing Information and Fly Patterns

Hopper

Fishing with Grasshoppers is one of the most exciting ways to fish the Bighorn.  At times you can see them blowing off the banks and into the river.

Hatch:  July – August

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