Colorado River trout firing as runoff fades — green drakes and golden stones incoming

What's biting

What's next

**The next two weeks on the Colorado River are shaping up to be the best fishing of 2026**, according to Crystal Fly Shop (CO). With runoff winding down and flows settling toward summer levels, the hatch calendar is about to come alive. Crystal Fly Shop reports green drakes are "right on the horizon in the next two weeks" on the Colorado River, and "in full force in another two weeks or so below Carbondale" on the Roaring Fork — anglers who can reach the water in the coming days are positioned to catch the leading edge before the peak crowds arrive. Golden stones, PMDs, and caddis are expected to fill in alongside the drakes, creating multi-hatch afternoon windows that push big browns and rainbows into active feeding lies.

Crystal Fly Shop (CO) specifically highlights **overcast days as the prime window** on the Colorado right now — cloud cover extends hatch activity and keeps fish looking up longer than the intense Colorado sun allows on bluebird afternoons. Target late morning through early evening on grey days; on bright days, shift toward nymphing deeper lies through midday. Rubberleg Stone nymphs and green drake imitations are noted producers for the subsurface game.

On the **Frying Pan River**, Crystal Fly Shop reports the water is low, clear, and cold — a technical tailwater pattern that rewards precise presentation. BWOs are hatching daily; PMDs have made their first appearance this past week. Standard tippet is 6X fluorocarbon. As runoff-chasing anglers migrate toward the opening Colorado and Roaring Fork, some pressure on the Pan may ease, making it an attractive option for anglers who prefer technical dry-fly fishing over attractor water.

For the **Arkansas River**, no current shop reports are in hand this week. Given the statewide low-snowpack year documented by Cutthroat Anglers (CO), flows on the Arkansas are likely running below historical averages for late June — expect lower, clearer water than a typical summer season. That environment favors early-morning sessions before light angles steepen, longer leaders, lighter tippet, and a careful downstream approach. PMDs and caddis are the expected producers on the Arkansas in late June under typical conditions; verify current flows with local tackle shops before making the drive.

With the First Quarter moon on June 21 (summer solstice), dawn and dusk transitions are reliable feeding windows as light levels shift. Plan a nymph session at first light, transition to attractor dries as fish begin looking up mid-morning, and stay into late afternoon to catch the hatch window that typically builds toward evening.

Context

A typical late-June week on the Colorado and Arkansas rivers would find anglers contending with the tail end of heavy runoff — off-color water, blown-out flows, and a waiting game that often stretches into early July before the Colorado River's summer hatch calendar opens. In 2026, that script has been rewritten.

Cutthroat Anglers (CO), which has guided the rivers surrounding Summit County since 1999, was direct in their seasonal assessment: "This winter has been historic for all the wrong reasons." Western snowpacks came in at historic lows, the melt arrived fast and light, and the resulting river conditions are weeks ahead of where they'd normally be at the summer solstice. What would typically be a runoff waiting game is already a "get on the water now" moment, a shift Crystal Fly Shop (CO) captures plainly: the Colorado River is already on "the back end of runoff" with "great water conditions and happy fish" — language that in a normal year wouldn't apply until mid-July.

Hatch Magazine noted the particular paradox low-water years create for Colorado trout anglers: while reduced flows carry real ecological stress, concentrated fish in predictable lies can make for unusually productive days for adaptable anglers. Cutthroat Anglers (CO) echoed the same silver lining in their May seasonal summary, noting that grouped-up, hungry fish reward anglers "willing to hike a little further or cast a little lighter."

On the access front, MidCurrent reported a notable 2026 bright spot: a landmark Colorado Parks and Wildlife acquisition of the Tolland Ranch expanded angler access to miles of previously private water in the state — a positive indicator for the broader season even if that specific water sits outside the Colorado and Arkansas drainages.

By historical benchmarks, late June on these rivers is the start of the waiting period. In 2026, the window opened early and it is open right now.