Fishing Season: Spring/summer through fall

Cimarron River - CO

Fishing Outlook & Conditions

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RIGS Fly Shops & Guide Service's Tip of the Week

The High Country is fishing great, and now is the time to get up there! Flows on all three forks above Silver Jack Reservoir are looking excellent, with clear water and healthy levels. We've been finding rising fish throughout the day, making for some exciting and consistent action. If you're a fan of throwing dries, you're in luck—Caddis and PMDs are hatching and fish are looking up. For those who want to maximize productivity, the dry-dropper rig continues to be the top performer. Trout have been feeding eagerly on small beadhead nymphs in a variety of colors, making for some fun and dynamic fishing. Whether you're chasing surface eats or working the subsurface game, the forks are alive and fishing well. Now’s the time to enjoy the beauty and the bite in the high country!

Directions open in app

Map of Cimarron River

Water Flow Data

Orvis-Endorsed guides nearby

RIGS Fly Shops & Guide Service

5-Day Outlook as of 7/11/25

The weather is looking great, however keep an eye out for afternoon thunderstorms heading into next week.

Techniques & Tips as of 7/11/25

Dry Dropper with a foam dry and a weighted nymph below will let you hit the pockets where fish are holding.

Current Conditions as of 7/11/25

Great water levels and Active fish.

Local Species Available Spring/summer through fall

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    Cutthroat

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    Brook Trout

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    Rainbow Trout

RIGS Fly Shops & Guide Service's Recommended Fly Patterns

"Must-have" fly fishing patterns in descending order of importance:

Name: Colors: Size(s):
Stimulator N/A
Larson's Legend Golden Stone Dry N/A
Bead Head Brassie™ N/A
Tunghead Soft Hackle Pheasant Tail N/A
TH Cased Caddis N/A
Tunghead Prince N/A

Stimulator

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Item #0928

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RIGS Fly Shops & Guide Service's Recommended Gear

Description: About Cimarron River

High Alpine fishing at its best! The Cimarron River offers endless fishing for Rainbow Trout, Cutthroat, and Brook Trout. As one of the most beautiful settings in Colorado, the Cimarron high country offers rare opportunities for solitude, native fish, and remote access. If you’re looking for a real Colorado backcountry experience, it doesn’t get any better than this. The Forks of the Cimarron include the West Fork, Middle Fork, and East Fork, and each offer an exceptional high-country angling experience. These small freestone streams provide miles of access, with riffles and pools, and plenty of trout. In addition to the Forks, the Big Cimarron includes a three-mile tailwater stretch below Silver Jack Reservoir. Large boulders and deep pools provide excellent habitats for large high-country trout. Summer through fall is the best time to fish the high country. After the snow melts and the Forks settle down, anglers can enjoy fishing dry flies at 9,600 feet with beautiful mountain scenery as the backdrop. After the summer mayfly fade, it’s all about hoppers. Throwing dry flies and hopper patterns at native and wild trout is tough to beat!

Nearest Airport:

Montrose Regional Airport

Bait Recommendations:

Foam Dry flies (Hoppers, chubbys, ants) as well as stimulators and caddis dry flies. Bead head nymphs (pheasant tails, copper johns, smaller perdigons).