RiverReports logo
River IntelBlogGo Pro
FISHABLE
Winter flows excellent, good nymphing conditions
Updated 12+ days ago

Roaring Fork River

CO
Current Hatch Activity
Midges
BWOs

Winter midge and BWO activity best mid-morning through early afternoon. Focus on slower water near Basalt.

FISHABLE
Stale (12+ days)
🎣
I'd tie on...

Euro nymph rig (Perdigon + Midge) or small streamers through deeper runs

Quick Reference
Fishable Flow Range

150-700 CFS ideal for wade fishing. 700-2,500 CFS for drift boats. Lower section (Basalt to Glenwood) handles higher flows.

Optimal Temperature

45-62°F optimal. Upper sections near Aspen stay cool. Lower sections can warm in summer afternoons.

Trend Notes

Gold Medal water near Basalt. Freestone character with spring runoff May-June. Summer and fall flows typically stabilize around 200-400 CFS in upper sections.

Clarity

Generally excellent clarity outside of runoff. The Fryingpan River confluence at Basalt adds cold, clear water that improves conditions downstream.

What "Fishable" Means Here

Fishable when flows allow effective presentation—typically under 1,500 CFS for wade fishing, up to 2,500 CFS for floating. Gold Medal designation near Basalt reflects quality fish populations.

Seasonal Patterns

March through May offers good pre-runoff fishing. BWOs and early stoneflies bring fish up. Runoff typically blows things out mid-May through mid-June.

Post-runoff (late June) kicks off prime season. Caddis, PMDs, and terrestrials dominate. The Fryingpan confluence keeps lower sections productive even on hot days.

September through November is excellent. Browns get aggressive, streamers produce, and BWOs provide consistent hatches. Less crowded than summer.

Low, clear flows make for technical fishing. Focus on slower water in the Basalt area. Midges and small nymphs produce. Less pressure, quality fish.

Alerts
Alternative Waters
Fryingpan River
Tailwater tributary with exceptional year-round fishing
Colorado River
Nearby freestone option with different character
View
Eagle River
Alternative freestone when Roaring Fork is crowded
View
Popular States
River Intel Weekly

Weekly flow updates and fishing intel.

© 2026 RiverReports, Inc.