Fly Fishing Colorado River - Glenwood Canyon

Overview

The Colorado River runs through Glenwood Canyon between Dotsero and Glenwood Springs, confined by steep rock walls and a boulder-strewn canyon floor. Deep runs, pocket water and sheltered seams hold brown and rainbow trout, cutbows and mountain whitefish. Its large current calls for controlled presentations to reachable holding water rather than trying to cover the full channel.

Canyon Water and Fishing

Boulders break the current into distinct feeding lanes. A weighted nymph rig can reach deeper runs, while a dry-dropper can cover a sheltered pocket when fish feed higher in the water. Keep the drift close to the chosen seam, adjusting weight and depth as the current changes. Steep banks, deep water and whitewater constrain fishing positions.

Midges provide small-fly opportunities in cold weather, with clusters, emergers and larvae among the useful patterns. Blue-winged olives appear in spring and fall, especially on overcast days. Caddis and stoneflies add options as the water warms, including the late-spring and early-summer Salmonfly emergence. Summer brings pale morning duns and terrestrials; fall offers olive activity and streamer fishing around deeper cover.

Granite and limestone walls rise above the river, with Interstate 70 and the recreation path sharing the narrow canyon. The confined channel gives this water a different character from the open valleys farther upstream and downstream.