TerrestrialbeginnerRocky Mountain West
Chubby Chernobyl
Flybox sourcing profile
No TWG price or checkout is active. Use this page to validate the fly, then source it through the mapped tier or trusted fly shops.
Available Sizes#8 - #14
Color Variations
TanRoyalGoldenPink
Pattern Ledger
Source Chubby Chernobyl
Want help finding this exact pattern or a tied-to-order equivalent? Join the sourcing ledger and we will prioritize demand by water, species, and pattern.
Sourcing Ledger
Where to source this pattern
TWG checkout is closed. These are current sourcing leads, scored by mapped tier, region, species, fly type, and named-pattern evidence. Confirm availability directly with the tier or shop.
Signature tierStrong match
Rocky Mountain Fly Design
Matched on Rocky Mountain West, terrestrial flies, trout. Colorado tier and shop lead for Rocky Mountain trout, bass, and predator patterns.
Rocky Mountain Westterrestrial fliestrout
Visit sourceRegional shopStrong match
Taos Fly Shop
Matched on Rocky Mountain West, terrestrial flies, trout. New Mexico/Southwest trout shop lead for Rio Grande, San Juan, Pecos, and high desert water.
Rocky Mountain Westterrestrial fliestrout
Visit sourceBroad sourceStrong match
Fulling Mill Flies
Matched on terrestrial flies, trout, nymph. Large pattern house with broad freshwater and saltwater fly categories.
terrestrial fliestroutnymph
Visit sourceBroad sourceStrong match
Big Y Fly Co.
Matched on terrestrial flies, trout, nymph. Broad by-type catalog useful for common benchmark patterns and inexpensive backups.
terrestrial fliestroutnymph
Visit sourceRegional shopStrong match
Dette Flies
Matched on terrestrial flies, trout, dry. Catskill lineage fly shop with deep dry-fly, wet-fly, and Northeast trout relevance.
terrestrial fliestroutdry
Visit sourceNamed after a nuclear disaster, which is appropriate because of what it does to a trout's composure. This foam monstrosity floats like a pool toy and holds up a nymph dropper with the structural integrity of a small bridge. Dry fly purists will look away. Your net will be full. Choose wisely.
Quick Facts
TypeTerrestrial
Difficultybeginner
SeasonsSummer, Fall
Target SpeciesRainbow Trout, Brown Trout, Cutthroat Trout
Sizes#8 - #14
Best LocationsYellowstone River, MT; Snake River, WY; Green River, UT
Where to Fish It
Yellowstone River
MT · Freestone River
Snake River
WY · Freestone River
Green River
UT · Tailwater
Map unavailable. Locations for Chubby Chernobyl: Yellowstone River, MT; Snake River, WY; Green River, UT
Related Reading
region guide
Rocky Mountain Trout: A River-by-River Guide
The Rocky Mountain West holds the finest trout rivers in North America. From the gin-clear tailwaters of Colorado to the sweeping freestone rivers of Montana, these waters offer everything from technical dry fly fishing to aggressive streamer hunting. This is your river-by-river guide to all of it.
seasonal playbook
The Summer Guide: Long Days and Willing Fish
Summer is fly fishing's season of abundance. Sixteen-hour days, prolific hatches, aggressive fish, and the full spectrum from mountain trout to saltwater flats. This is your playbook for making the most of the warmest, longest, most generous months of the fishing year.
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.
hatch guide
Terrestrial Fishing: Hoppers, Ants, and Beetles
Terrestrial insects — hoppers, ants, beetles, and crickets — are not aquatic hatches, but they drive some of the most exciting and productive dry-fly fishing of the year. From midsummer hopper banks to fall ant flights, this is your guide to fishing the land-based food sources that trout cannot resist.
technique
Reading Water: Finding Fish by Reading Structure
Every river tells you where the fish are, if you know how to listen. Reading water is the fundamental skill that separates productive anglers from persistent ones. The ability to look at a stretch of river and identify the handful of spots that hold fish — and dismiss the vast majority that don't — is worth more than a lifetime of fly pattern knowledge.
technique
Fly Selection: A Decision Tree for Every Situation
Most anglers open their fly box and stare at it like a menu in a foreign language. But fly selection isn't mystical — it's a decision tree. Start with what the fish are eating, narrow by presentation depth, match the profile and size, and you'll arrive at the right fly in under sixty seconds. Here's the system.
technique
Reading Stream Gauges: Flow Data for Better Fishing
Every major trout and steelhead river in America has a USGS gauge station publishing real-time flow and temperature data for free. Learning to read it is like having a scout on the river around the clock. Here's how to turn CFS numbers and trend lines into fish-catching intelligence.
technique
Nymph or Dry? The Decision That Changes Everything
Ninety percent of a trout's diet is consumed subsurface. Yet ninety percent of the magazine covers show a dry fly floating on calm water. The decision between nymphing and dry-fly fishing isn't about preference — it's about reading the situation and making the choice that puts your fly where the fish are actually feeding.
You Might Also Like
TerrestrialbeginnerDave's Hopper
FlyboxFind a tier or trusted source
Rocky Mountain West
#6 - #12
Dave Whitlock's grasshopper imitation. Turkey wing, deer hair collar, yellow body. The definitive hopper pattern since the 1970s.
YellowTanOlive
Rainbow Trout · Brown Trout · Cutthroat Trout
SprSumFallWin
Source & Details →
TerrestrialbeginnerAmy's Ant
FlyboxFind a tier or trusted source
Rocky Mountain West
#12 - #18
Foam ant pattern with a visible indicator post. Two-tone foam body segments with rubber legs. Floats all day.
BlackCinnamonRed/Black
Rainbow Trout · Brown Trout · Cutthroat Trout · Brook Trout
SprSumFallWin
Source & Details →
TerrestrialbeginnerFoam Beetle
FlyboxFind a tier or trusted source
Rocky Mountain West
#12 - #18
Simple foam-backed beetle pattern with peacock herl underbody and indicator post. Imitates the beetles that tumble into streams all summer.
BlackPeacockBrown
Rainbow Trout · Brown Trout · Cutthroat Trout · Brook Trout
SprSumFallWin
Source & Details →
TerrestrialbeginnerLetort Cricket
FlyboxFind a tier or trusted source
Rocky Mountain West
#8 - #14
Ed Shenk's classic cricket imitation. Black deer hair body, dark turkey wing. Originated on Pennsylvania's Letort Spring Run but deadly on western waters.
BlackDark Brown
Rainbow Trout · Brown Trout · Cutthroat Trout
SprSumFallWin
Source & Details →
Dry FlybeginnerParachute Adams
FlyboxFind a tier or trusted source
Rocky Mountain West
#12 - #22
The universal dry fly. Grizzly hackle, white post, dubbed body. If you cannot identify the hatch, tie on an Adams.
Standard GrayFemale (yellow egg sac)
Rainbow Trout · Brown Trout · Cutthroat Trout · Brook Trout · Mountain Whitefish
SprSumFallWin
Source & Details →
Dry FlybeginnerElk Hair Caddis
FlyboxFind a tier or trusted source
Rocky Mountain West
#12 - #18
Al Troth's iconic caddis imitation. Elk hair wing, palmered hackle. Floats like a cork in fast water.
TanOliveBlack
Rainbow Trout · Brown Trout · Cutthroat Trout · Brook Trout
SprSumFallWin
Source & Details →