Colorado Rivers exit runoff early: prime trout fishing opens now

What's Biting

What's Next

With the Colorado River declining off its modest runoff peak and water temps registered at 63°F, the next two to three days should bring continued improvement in clarity and fishability across the main stem and its tributaries. Crystal Fly Shop forecasts green drakes 'right on the horizon in the next two weeks' near Glenwood Springs, with golden stones, PMDs, and caddis expected to fill out a strong late-spring hatch sequence. Float trips and wade days booked now will land right in the thick of it.

Morning sessions are the priority. Crystal Fly Shop's Colorado River report recommends nymphing with Rubberleg Stones and green drake imitations through mid-morning before hatches begin firing in the afternoon sun. As temps approach the upper end of the trout comfort zone, the best feeding windows will cluster in the cooler early hours and again in the evening. Plan for a dry-fly window mid-afternoon as hatches begin transitioning, particularly on shaded stretches.

Cutthroat Anglers' guide Matt Campanella makes an important point for this low-water season: fish are 'grouped up and ready to bite for the angler willing to hike a little further or cast a little lighter.' Lighter tippets and deliberate wading approaches will pay dividends on Colorado's clearer-than-normal stretches. Crystal Fly Shop's Frying Pan River report recommends 6X fluorocarbon as standard fare on technical tailwater beats, and that logic carries to pressured main-stem sections as well.

On the Dream Stream, Colorado Trout Hunters' spring-run trophy fishery is still producing for experienced anglers willing to cover water on foot. Target deeper holding lies with nymphs in the morning before switching to attractor and emerging-pattern dries as the day warms.

This weekend's full moon adds one more variable. Low-light windows around dawn and the last hour of daylight should produce the most aggressive surface activity. Late caddis and emerging PMDs are worth having on hand for those evening sessions. The Frying Pan at 110 cfs with reliable BWO and PMD hatches daily, per Crystal Fly Shop, offers a lower-pressure alternative if the Colorado main stem sees weekend crowds.

Context

A typical late May and early June on the Colorado and Arkansas Rivers means peak or near-peak runoff, with flows running high and turbid and most technical dry-fly fishing on hold until late June or even July. That is not this year's story.

Cutthroat Anglers in Summit County puts it plainly: 'This winter has been historic for all the wrong reasons.' Western snowpacks across Colorado are at historic lows, a reality confirmed in their May update and corroborated by a thread on The Fly Fishing Forum where out-of-state regulars who visit each summer are already recalibrating their expectations. Cutthroat Anglers' guide Matt Campanella notes that more than 60 percent of the Lower 48 is in some level of drought, with Western snowpacks at season-defining lows.

The practical result is an early, compressed fishing calendar. Runoff peaked lower and earlier than normal, meaning the prime June window has arrived several weeks ahead of a typical schedule. Crystal Fly Shop's reports on the Colorado confirm conditions that would normally not materialize until late June or early July. The tradeoff is a shorter summer window overall; lower snowpack means flows will drop faster than usual once runoff concludes, concentrating fish in deeper pools and slower runs as July and August heat arrives.

For now, the picture is unusually favorable. Clearing water, building hatch activity, and fish that came through a lean runoff period in concentrated feeding lies add up to a genuine opportunity. Per Crystal Fly Shop, the time to be on the Colorado is right now, not in a few weeks.