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, blue-winged olives, caddis, PMD's, yellow sallies, and Tricos. Look for low flows for the remainder of the summer.

Effective Patterns: #20-22 Jujubaetis, #22 Stalcup's Baetis, #20 Smith's Baetis, #20-22 Mercury Midge, #20 Manhattan Midge, # 18 Buckskin, #18 Graphic Caddis,#18 Pale Olive Midge Larva, #20-22 Mercury Flashback RS 2, #20-22 Sparkle Wing RS 2, #10 Pine Squirrel Leech, #10 Mayers Mini Leech, #10 Shafer's Gummy Cranefly, #10 Pat's Rubber Legs, #16-18 Puterbaugh Caddis, #16-18 Elk Hair Caddis, #20 Mathew's Sparkle Dun (BWO and PMD), Stalcup's CDC Biot Trico Comparadun, and #10 Amy's Ant.

Measurements

South Platte River – Eleven Mile Canyon

Flow: 101 ft3/s
Temp: 50 °F
Wind: 6 MPH W
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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:

Eleven Mile Canyon is fishing good right now. Anglers can expect to see reliable hatches of midges, PMD’s, Yellow Sally’s, Tricos, and caddis right now. Nymphing with an assortment of midge and mayfly nymphs has been productive before the hatch, and Yellow Stimulators, Elk Hair Caddis, Mathew’s Sparkle Duns, and CDC Biot Trico Comparduns have been effective during each hatch. Please be mindful of the low water and temps and plan your fishing accordingly.

Note: Flows are low and the water temps are climbing fast. Please be mindful of the water temps. If the water temps exceed 67 degrees, please quit fishing to protect the resource. It is recommend to start early and finish early until water levels improve.

Pat Dorsey Fly Fishing