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Morrish Mouse fly pattern
Streamer · #174 of 382

Morrish Mouse

Also known as: Mouse

Imitates: Swimming mouse or vole

Quick Reference

Best Sizes
#2-6
Best Season
Summer nights through early fall
Best Conditions
Big browns, low light, night fishing, cutbanks, woody banks, trophy water
Water Temp
55-70°F
Recommended Tippet
0X-2X

How to Rig It

Fish alone on a stout leader, often with a floating or intermediate line depending on current speed.

How to Present It

Cast tight to the bank and strip with a steady waking V. Pause only occasionally.

Why It Works

Large trout eat rodents because they are calorie-dense. The wake and silhouette of a good mouse pattern can pull truly predatory fish from cover.

History

Ken Morrish helped popularize modern mouse fishing in the West with durable mouse designs made to wake correctly and survive big fish.

Pro Tip

Fish it after dark. The biggest eats often sound more like someone throwing a cinder block into the river than a trout rise.

Frequently Asked Questions

When should I mouse for trout?+

Warm summer nights, especially for big browns on rivers with undercut banks, grass, and woody structure.

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