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Prince NymphNymphbeginner

Rocky Mountain West

Prince Nymph

Flybox sourcing profile

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Available Sizes#10 - #18
Color Variations
Standard (peacock/white biots)Psycho Prince (flashy variant)

Pattern Ledger

Source Prince Nymph

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Trusted Sourcing Ledger

Find this fly from an independent source

Exact links are published only after the product name and live page are checked. TWG does not sell the fly, set the price, or control stock, shipping, or returns.

Exact source still under review

We have not published an exact product link for this pattern yet. The directory below can help locate a regional specialist, but it is not proof that the exact fly is currently listed.

Regional source directory

Specialist source

Rocky Mountain Fly Design

Matched on Rocky Mountain West, nymph flies, trout. Colorado tier and shop lead for Rocky Mountain trout, bass, and predator patterns.

Rocky Mountain Westnymph flies
Regional shop

Taos Fly Shop

Matched on Rocky Mountain West, nymph flies, trout. New Mexico/Southwest trout shop lead for Rio Grande, San Juan, Pecos, and high desert water.

Rocky Mountain Westnymph flies
Specialist source

Stillwater Fly Fishing Store

Matched on Rocky Mountain West, nymph flies, trout. Specialist stillwater source for balanced leeches, chironomids, and lake-trout logic.

Rocky Mountain Westnymph flies
Broad catalog

Fly Fish Food

Matched on nymph flies, trout, mayfly. Strong technical tying and trout catalog coverage, especially nymphs, dries, and stillwater flies.

nymph fliestrout

These are independent businesses. A listing does not imply endorsement or partnership. TWG currently receives no purchase commission from these links. Any future paid or affiliate relationship will be labeled beside the relevant link.

Doug Prince created this fly in the 1940s and it has been confusing entomologists and catching trout ever since. It does not really look like anything in particular -- the white biot wings are too prominent for a mayfly, the peacock body too flashy for a stonefly. And yet trout eat it with disturbing regularity. The Prince Nymph is proof that sometimes the fish know things we do not, and the best response is to stop asking questions and keep casting.

Quick Facts

TypeNymph
Difficultybeginner
SeasonsSpring, Summer, Fall, Winter
Target SpeciesRainbow Trout, Brown Trout, Cutthroat Trout, Brook Trout
Sizes#10 - #18
Best LocationsYellowstone River, MT; Madison River, MT; North Platte River, WY

Where to Fish It

Yellowstone River

MT · Freestone River

Madison River

MT · Freestone River

North Platte River

WY · Freestone River

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Related Reading

hatch guide

Caddis: The Underrated Hatch

Caddisflies outnumber mayflies on most trout streams, yet they receive a fraction of the attention. From the explosive Mother's Day caddis hatch to the giant October caddis of the Pacific Northwest, understanding Trichoptera transforms your fishing from spring through fall.

hatch guide

Stoneflies: When Big Bugs Bring Big Fish

Stonefly hatches produce the most explosive dry-fly fishing of the season. From the legendary salmonfly emergence on western rivers to golden stones across the Pacific Northwest, these big bugs bring the biggest trout to the surface. Consider this your field guide to fishing Plecoptera — the clean-water giants that make twenty-inch trout eat flies the size of your thumb.

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