Rainbow Trout Fishing in Colorado
Check regulations
Check regulations
Year-round
Overview
Colorado's high-altitude streams and tailwaters produce world-class trout fishing.
Gold Medal waters receive special management for trophy trout—know the regulations.
Matching the hatch is critical on pressured tailwaters like the South Platte and Frying Pan.
Spring runoff can blow out rivers from May through June; time your trips around snowmelt.
Best Waters in Colorado
- South Platte River (Cheesman Canyon) — Gold Medal water with technical dry-fly fishing for large, selective rainbow trout.
- Frying Pan River — Legendary tailwater below Ruedi Reservoir producing trophy rainbow trout on tiny midges and BWOs.
- Arkansas River — Freestone river through Salida and Buena Vista with excellent rainbow and brown trout.
- Blue River — Tailwater below Dillon Reservoir with quality rainbows in a scenic mountain setting.
Local Techniques & Baits
Techniques
- Nymphing (Euro and indicator)
- Dry fly fishing
- Streamer fishing
- Sight nymphing
- Tightline nymphing
Baits & Lures
- RS2 midge
- Zebra Midge
- Blue Wing Olive (BWO) dry
- Pheasant Tail Nymph
- Pat's Rubber Legs stonefly
Seasonal Guide for Colorado
SpringSpring Fishing
Pre-runoff fishing (March-early May) is excellent. Midge and BWO hatches produce consistent dry fly action.
SummerSummer Fishing
Post-runoff fishing (July-August) is prime. PMD and caddis hatches bring trout to the surface.
FallFall Fishing
Blue Wing Olive hatches in September-November are outstanding. Lower water levels make wading easier.
WinterWinter Fishing
Tailwaters fish year-round. Midge fishing on the Frying Pan and South Platte is world-class.
Regulations
Regulations change frequently. Always verify current regulations with Colorado Fish & Wildlife. Information shown was last updated 2025-01-01.
Specific regulations for rainbow trout in Colorado are not listed in our database. Please check the official Colorado regulations for current rules.