The Eagle is Colorado's comeback river: a mine-scarred freestone restored into a wild brown trout fishery running right down the Vail Valley, with spring caddis blizzards and August hopper banks: and none of the tailwater elbow-to-elbow.
Reports current for Friday, October 23
Every one of the 37 Colorado waters we cover has a live read this morning. 7 are scoring 4 out of 5 or better and 13 are slow. Water runs 47 F to 62 F. Pressure is holding steady on most of them, so the day comes down to water temperature and wind. 11 have a better-than-even chance of rain.
Best right now: Big Thompson River 4/5, Boyd Lake 4/5, Cache la Poudre River 4/5
Live verdicts from this morning's reports.
The Vail Valley's freestone comeback story: browns and rainbows against I-70, best caddis water in reach of a chairlift.
Colorado's biggest lake: kokanee salmon central and lake trout that eat them.
The Front Range's home tailwater: Cheesman Canyon's technical rainbows minutes from Denver.
The Blue River below Dillon Dam: catch-and-release trout water through Silverthorne, then a CPW Quality Water with fall kokanee from Green Mountain Reservoir.
South Park's trophy factory: shallow, fertile and famous for fast-growing giants.
The Arkansas River's desert lake: walleye, wipers and smallmouth under sandstone bluffs.
Denver's clear suburban trophy pond: big trout, big walleye and a no-gas-motor calm.
Colorado's wild artery: Gold Medal water through the Black Canyon's shadow.
The mysis tailwater where Colorado's heaviest trout sip tiny flies below the dam.
Estes Park's canyon workhorse: pocket water rainbows below Olympus Dam.
The Gold Medal freestone that keeps pace with its famous neighbors, Aspen to Glenwood.
Clear Creek in Clear Creek Canyon Park: Jefferson County Open Space land along US 6 west of Golden, with trailheads and creek access points.
Lake Granby: a 7,250-acre Arapaho National Recreation Area reservoir that CPW lists as a Quality Water, with the highest density of lake trout in Colorado.
Denver's backyard big water: walleye eggs for the whole state, smallmouth on the dam rocks and paddleboard armadas dodged at dawn.
South Park's trophy engine: gold-medal stillwater at 8,700 feet, where pike ambush and rainbows outgrow every neighbor.
The Uncompahgre: Ridgway's tailwater gift, where the San Juans' silt turned to trophy water below the dam at Pa-Co-Chu-Puk.
Telluride's river: a free-flowing ribbon dropping from the box canyon through cottonwood gold, wild trout the whole way.
Evergreen Lake on Bear Creek: a small drinking-water reservoir in the Jefferson County foothills, stocked with rainbow trout and fished from shore or a hand-launched boat, sunrise to sunset.
South Park's third wheel: Tarryall's sage-flat water fishes the famous valley's program without the famous valley's parking.
The Crystal River: a Roaring Fork tributary that runs past Marble and Redstone and along Colorado 133 to Carbondale.
Bear Creek: a Jefferson County foothills stream below Evergreen Lake, where CPW allows only flies and lures and requires rainbow trout to be released.
Vail's home creek, with a CPW Gold Medal reach from Red Sandstone Creek to the Eagle River under a flies-and-lures, two-fish, 16-inch rule.
A Gold Medal trout lake under Hahns Peak: Steamboat Lake's 1,053 acres sit at about 8,000 feet in Routt County.
A 1,900-acre Colorado-Big Thompson reservoir west of Fort Collins where CPW protects walleye as brood stock and smallmouth must reach 12 inches.
Boyd Lake: a 1,700-acre state park reservoir in Loveland, closed to boating for the rest of 2026 because of low water.
Reclamation's Twin Lakes Reservoir south of Leadville, where lake trout from 22 to 34 inches must go back and the state cutthroat record was caught.
Dillon Reservoir: Denver Water's largest reservoir, at 9,017 feet in Summit County, with brown trout, rainbows, kokanee and Arctic char.
Eleven Mile Reservoir: 3,405 surface acres on the South Platte in Park County, where CPW lists rainbow, brown and cutthroat trout, kokanee and pike.
A Reclamation reservoir on the Fryingpan River with rainbow, brown and lake trout, above a 14-mile reach of river that CPW limits to flies and lures.
Vallecito Reservoir: a 2,720-acre Bureau of Reclamation lake on the Pine River where Colorado Parks and Wildlife says trophy pike are routinely caught.
A 1,000-acre reservoir in Ridgway State Park with trout, kokanee, splake and newly introduced walleye, where every smallmouth bass caught must be killed.
John Martin Reservoir: a Corps reservoir on the plains of southeastern Colorado, with a state park, Lake Hasty below the dam and low water in 2026.
Trinidad Lake on the Purgatoire: a Corps flood-control lake run as a state park, stocked each year with rainbow trout and holding walleye and bass.
The upper Arkansas: 152 miles of river in CPW's Arkansas Headwaters Recreation Area, 102 of them Gold Medal water, mostly wild brown trout.
Northwestern Colorado's free-flowing Green River tributary: trout water through Steamboat Springs under CPW special rules, with no limit on pike and bass downstream.
The San Luis Valley’s river: the Rio Grande runs Gold Medal browns below the San Juans.
Colorado's only federally designated Wild and Scenic River, flowing from Rocky Mountain National Park through the Poudre Canyon toward Greeley.
Species activity across the state's covered waters. Peak of the year: May.
1 = slow, 5 = peak. Current month highlighted.
Seasonal surface curve for this state's dominant water type (estimated).
Colorado's fishing is bigger than its famous tailwaters: yes, the Frying Pan and Deckers deliver technical trophy trout, but the state's soul is its freestone valleys (the Eagle, Roaring Fork, Arkansas) where wild browns eat dries all summer, and its high-country lakes where cutthroats rise at 11,000 feet. The gold-medal designation marks the best public water, and Colorado's access network of leases and easements keeps growing.
April-early May: pre-runoff caddis (the Arkansas' Mother's Day hatch is a phenomenon). Late May-June: runoff: fish tailwaters and lakes. July-August: the glory season: hoppers on the banks, PMDs in the riffles, alpine lakes open. September-October: streamer weather, golden cottonwoods, big browns moving. Winter: midge fishing on the tailwaters in surprising solitude.
Two windows: pre-runoff April-early May (the caddis window) and post-runoff July through October. Mornings beat afternoons once summer storms start staining the tributaries.