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Pat Dorsey’s Stream Report – Elevenmile Canyon – South Platte

Elevenmile Canyon is known for its superb dry fly fishing. The Trico hatch is one of many that anglers should concentrate their efforts on.

Current Conditions

Clarity: Excellent

14 Day Forecast: Look for hatches of midges, blue-winged olives, and sporadic caddis and yellow sallies. Flows are on the rise from spring run-off.

Tips and Other Information:

Flows are on the rise in Eleven Mile Canyon due to spring run-off. Inflows to Spinney Mountain Reservoir are currently 630 cfs and rising, so the river is gonna get big soon! Anglers should prepare themselves for hatches of midges, sporadic blue-winged olives, caddis and yellow sallies. I’d break out some of the big-bites as well, including stoneflies, San Juan Worms, scuds, leeches, etc. and trail a Buckskin, Mercury Pheasant Tail, Juju Baetis, Chocolate Foam Wing Emerger, red Copper John, RS 2 behind it, all in sizes 18-22.

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

Fishing Report: Elevenmile Canyon – South Platte River

Elevenmile 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

Current Conditions

Flow: 78 cfs

Clarity: Exellent

Water Temperature: Low to mid 40’s

Hatches: Midges and blue-winged olives

14 Day Forecast: Look for good hatches of midges and blue-winged olives. ​

Tips and Other Information: Fishing has been good in Elevenmile Canyon.  Anglers should prepare themselves for a good midge-bite in the a.m. followed by a nice blue-winged olive hatch in the afternoon. Stock your fly boxes with plenty of midge pupa and Baetis nymphs. The fish are moving back into the riffles and feeding hard.  As far as the surface feeders are concerned, its hard to go wrong with a size 24-26 Parachute Adams for the midges and a size 20 Mathew’s Sparkle Dun for imitating the “olives”.

Effective Patterns:  #20-22 Sparkle Wing RS 2, #20-22 Mercury Pheasant Tail,  #20-22 Rainbow Warriors,  #20-24 Chocolate Foam Wing Emerger,  #20-22 Jujubaetis, #20-22 Mercury Midge, #22-24 Mercury Flashback RS II, #20-26 Parachute Adams, #22-24 Barr’s Visa Dun, #22-24 Mathew’s Sparkle Dun, #22-24 Cannon’s Snowshoe Dun, and #22-24 Hi Vis Baetisand #24-26 Parachute Adams.