Roaring Fork River Fishing Report

Basalt to Glenwood Springs | October 2026

Fishing: Very Good

Water: Low, Clear & Cooling | Best Fishing: Late Morning–Afternoon

October is one of our favorite months to fish the Roaring Fork River from Basalt to Glenwood Springs.

Cooler nights have brought water temperatures down, fall colors are filling the valley, and the river is offering a great combination of Blue-Winged Olive dry-fly fishing, caddis activity, productive nymphing and excellent fall streamer fishing.

Flows remain well below normal for this time of year, so anglers should expect clear water and more concentrated trout. Stealth, accurate presentations and paying attention to deeper holding water are important.

BLUE-WINGED OLIVES ARE THE MAIN EVENT

Blue-Winged Olives are the hatch to watch in October.

Look for BWO activity from late morning through the afternoon, especially during cloudy, cool or overcast weather.

When the hatch gets going, trout can move into shallower feeding lanes, riffle edges, seams and softer water to feed on emerging mayflies.

Keep your dry-fly rod ready!

BWO Patterns to Try:

• Parachute BWO #18–22
• Sparkle Dun #18–22
• CDC BWO #18–22
• RS2 #18–22
• Barr’s Emerger #18–22
• JuJu Baetis #18–22
• Pheasant Tail #16–20

CADDIS ARE STILL IN THE GAME

Don’t put away your caddis box just yet.

Caddis can remain active during October, particularly during warmer afternoons. Watch for occasional surface activity and consider swinging a soft hackle or caddis emerger through riffles.

October Caddis can also provide a much larger meal for trout during the fall.

Try an Elk Hair Caddis, X-Caddis or October Caddis imitation, and don’t be afraid to use a larger caddis as the top fly in a dry-dropper setup.

FALL STREAMER FISHING IS HERE!

October means streamer season on the Roaring Fork.

The river has an excellent population of brown trout, and larger browns become increasingly aggressive as they approach their fall spawning season.

This is the time of year to cover water.

Concentrate your streamer fishing around:

• Deep banks
• Undercuts
• Large rocks and structure
• Drop-offs
• Riffle-to-pool transitions
• Deep runs
• Logjams and woody structure

Olive, black, brown and natural sculpin patterns are all excellent choices.

Streamers to Try:

• Sculpzillas
• Sparkle Minnows
• Sex Dungeons
• Barely Legals
• Autumn Splendors
• Woolly Buggers
• Olive and black articulated streamers

Cloudy October days can be especially exciting. If the sky darkens and the BWO fishing isn’t happening, tie on a streamer and start covering water.

BASALT TO CARBONDALE

The middle Roaring Fork currently offers a great mixture of riffles, pools, pocket water and deeper runs.

With the river running low, focus on areas that provide trout with depth, current and cover.

A dry-dropper can be an excellent setup during the warmer part of the day. Fish a visible BWO, caddis or attractor dry with a small Baetis or caddis nymph underneath.

When fish aren’t looking up, switch to a light nymph rig and concentrate on deeper runs and seams.

CARBONDALE TO GLENWOOD SPRINGS

This is some of the most famous water on the Roaring Fork.

The 13-mile stretch between Carbondale and Glenwood Springs is managed under Gold Medal regulations and offers excellent opportunities for larger rainbow and brown trout.

This is also prime float-fishing water.

October’s lower flows require more attention to boat channels, but floating remains a great way to cover water and reach productive banks, runs and structure.

This section is particularly attractive for anglers who want to combine dry flies, nymphs and streamers during the same day.

NYMPHING

When there isn’t obvious surface activity, nymphing remains the most dependable approach.

Try:

• Pheasant Tails #16–20
• RS2s #18–22
• Barr’s Emergers #18–22
• JuJu Baetis #18–22
• Perdigons #16–20
• Caddis larvae #14–18
• Pat’s Rubber Legs #8–12
• Zebra Midges #18–22

With the lower, clearer water, don’t automatically fish a heavy rig. Adjust your weight and depth to the water you’re fishing.

LOW WATER = CHANGE YOUR APPROACH

The Roaring Fork is currently running low for the season.

That doesn’t mean poor fishing—it means anglers need to adjust.

Use longer leaders, lighter tippet and more careful presentations when fishing dries and small nymphs. Avoid unnecessarily wading through productive water and look carefully before entering the river.

Trout may be concentrated in deeper runs, but don’t overlook riffles and faster water during a hatch.

⚠️ PROTECT SPAWNING BROWN TROUT

October also means brown trout are approaching their spawning season.

Watch carefully for redds—clean areas of freshly disturbed gravel where trout are spawning.

Please avoid walking through redds and don’t deliberately target actively spawning trout.

There are plenty of aggressive, feeding browns away from spawning areas, particularly when fishing streamers along deeper banks and structure.

OCTOBER OUTLOOK

The Roaring Fork should be one of the Vail and Roaring Fork valleys’ top fishing options this October.

Cooler water, Blue-Winged Olive hatches, caddis, aggressive pre-spawn brown trout and excellent streamer opportunities give anglers plenty of ways to fish throughout the day.

Add in spectacular fall colors and fewer anglers, and October is an outstanding time to experience the Roaring Fork.