Overall River Rating:


Eleven Mile Fly Fishing Report

Latest update: 6/24/18 -- Flows are up in 11-Mile Canyon to a raging 82 CFS. It will be extremely tough to wade at this flow... hopefully, you catch the sarcasm here. Just like every other stretch of the South Platte, we are seeing really low flows for this time of the year. Water temps in these flows will always be a concern so make sure you are aware of water temps. Fishing does remain steady, as we are seeing great bug life and happy fish. Focus your efforts on sight fishing and take advantage of the great dry fly fishing opportunity. Fish will be feeding actively on Caddis, PMDs, Tricos, Terrestrials, and Yellow Sallies. That gives you plenty of options. Given the nature of South Platte Tailwaters, the fish will be inevitably keyed in on different bugs almost daily, so have a wide variety of the bugs previously mentioned in your box!

River Information

Eleven Mile Canyon is another very popular and productive spot to fish along the South Platte River. Approximately 2 hours from Denver, this tailwater section of river created from 11 Mile Reservoir holds Rainbow, Brown and Cutthroat trout. Fish numbers are very high in the first several miles below the dam and the river is abundant with aquatic bug life. This river sees some phenomal BWO, Midge and PMD hatches providing exceptional dry fly fishing at times.  12"-18" fish would be considered average here, however fish much bigger than this are taken every year - especially within the first two miles of the dam. Given it's proximity to Denver, angling pressure can be quite high here, however the fish are typically still quite catchable. 

Recommended Flies

Seasonal Conditions

Like all stretches of the South Platte, Eleven Mile Canyon is another great piece of water to spend a Fall / Winter day. This section of the Platte often gets overlooked this time of the year as the Dream Stream commands so much attention. The crystal clear water of this canyon can provide some incredible sight fishing opportunities with both dries and nymphs on any given day. Streamer fishing can also be quite good in here as well- particularly on cloudier days.

Fishing here in the Winter is going to follow the weather trends. Fishing will be most productive up near the top of the canyon where the water will be warmer. 

For consistent activity I recommend nymphing unless you see fish actively feeding on the surface. Look for fish to still be holding near the riffles and shallow shelves, buckets, drop-offs and rock gardens.

Don’t shy away from stripping streamers in the lower canyon stretch as well. As cold weather slows fish down, they are eager to grab a big protein meal in the plunge pools.

Bug life here will mirror most other stretches of the Platte with BWO / Midge showing up throughout the season. As is always the case on this river, cover water and don't spend too much time in an area if it's not producing.

Recommended flies: Juju Baetis, Barr's BWO Emerger, Freestone Emerger, Batwing BWO, Stalcups STD Baetis, Mercury RS2 Flashback, Dorsey's Mercury RS2, Mercury Bead Pheasant Tail, Rainbow Warriors, RS2's, Graphic Caddis, Bucksin, Black Beauty, Foamback Emerger, Rojo Midge, Pure Midge, Jujubee Midge, Bling Midge, Film Cirit BWO, Parawulff, Parachute Adams, Griffith's Gnat, Eric's Hi-Viz Midge, Chubby Chernobyl, Parachute Hopper, Sculpzilla, Slumpbuster, Thin Mint, Double-Mint.

River Access

11 Mile Canyon is best accessed via US Hwy 24 in Lake George. Once here, take Country Road 96. Stay to the right at the fork in the road. There is an entrance station which is manned during the day. A self service fee tube is also available for after hours. The park is generally accessible year round.