Elevenmile Canyon

Man and his dog fly fishing in Elevenmile Canyon with a rock wall in the background

14 Day Forecast: Look for hatches of midges, caddis, yellow sallies, PMD's, and Tricos. Flows are back to their normal historic levels which is great news! Mark Adams photo

Effective Patterns: #22 Stalcup's Baetis, #14-16 San Juan Worm, #14-16 UV Scud, #16-18 red Copper John, #20-22 Juju Baetis, #20-24 Chocolate Foam Wing Emerger, #18-20 Mercury Pheasant Tail, #20-24 RS 2, #18-20 Buckskin, #18 Mitchell's Split Case PMD, #18 Barr's Emerger (PMD) #16 Barr's Graphic Caddis, #16 Mercer's Swing Caddis, #14-16 Elk Hair Caddis, #16 Yellow Sally #16 Stimulator, #18-20 Sparkle Dun, and #20-22 Parachute Adams.

Measurements

South Platte River – Eleven Mile Canyon

Flow: 97 ft3/s
Temp: 41 °F
Wind: 14 MPH SW
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Elevenmile Canyon Stream & Fly Fishing Conditions on the South Platte River in Colorado

The South Platte River below Elevenmile Reservoir is absolutely beautiful. The South Platte River tumbles and twists through a majestic canyon as it carves its way downstream to the small community of Lake George. Parts of the scenic canyon remind you of the fabled Cheesman stretch while others look much like the renowned Deckers area. Elevenmile Canyon is a great winter and early spring fishery with tremendous opportunity to consistently hook nice fish. The river is loaded with Rainbows and Cut-bows with the occasional brown trout.

The average fish ranges between 12 and 17 inches and are strong as an ox. Occasionally you will hook fish between 17 and 24 inches in the upper reaches below the dam. The river is comprised of riffles, runs, shelves, gravel bars, and nice pocket water. The scenery is fabulous with logjams, huge granite boulders, fallen trees, waterfalls, and bald eagles soaring above the canyon’s lip. The ideal flow for Elevenmile Canyon is between 150 and 250 cfs. The best fishing is in the upper two miles. The aforementioned two-mile stretch is flies and lures only. This section is catch and release and all fish must be returned to the water immediately. Pinch down your barbs and protect this incredible resource.

Eleven Mile Canyon is known for its superb dry fly fishing. The Trico hatch is one of many that anglers should concentrate their efforts on. Mark Adams photo

Tips & Other Information:

Flows are perfect in Eleven Mile Canyon and fishing has been good.  Anglers should prepare themselves for hatches of midges, blue-winged olives, caddis,  yellow sallies, and Tricos.  An attractor (stonefly, San Juan Worms, scuds, leech, etc.)  trailed by a size 18-20 Barr Emerger,  Mercury Flashback Pheasant Tail, Juju Baetis, Chocolate Foam Wing Emerger, or Mitchell’s Split Case is a good bet right now. Look for good flows and reliable fishing for weeks to come. Eleven Mile Reservoir is completely full (102%) which is good news for the remainder of the summer season.

Pat Dorsey Fly Fishing