South Platte: Eleven Mile

Weekly Overview:

November 11, 2019:

  • Technicality: 3/5

  • Flows through Eleven Mile Canyon have been relatively steady for the past two weeks, which has led to consistent fishing. Currently sitting at 65 cfs, the pronounced pools and runs are the most consistent sections to target. When it’s cold and/or sunny, fish these sections with a heavy nymph rig. When it’s warm and/overcast, drop some weight and fish the upper half of the water column with midge/baetis emerger patterns. Trout will also slide into the transition areas and tailouts when the water warms up and hatches pick up, so pay attention to those two things. Aside from the mid-morning midge and afternoon BWO hatch, plan on nymphing. Our general rule of thumb is to fish double midges in the morning, a baetis followed by a midge emerger between 11 am and 1 pm and a double baetis rig after 1 pm.

  • Ideal Days to Fish: Thursday, Friday & Saturday

  • Suggested Flies: 

    • Sub-surface: RS2 (#20-22), Barr's Emerger (#20-22), Chocolate Thunder (#20-22), JuJu Baetis (#20-22), Mercury Pheasant Tail (#20-22), WD 40 (#20-22), Mercury Midge (#22-24), Black Beauty (#22-26), Zebra Midge (#20-24), Blood Midge (#20-22), Disco Midge (#20-22), Guides Choice Hares Ear (#16-18), Rainbow Warrior (#18-20), red Copper John (#18-20), egg patterns, pink/green scud, leech pattern and San Juan Worm.

    • Surface: Parachute Adams (#22 - 24), Parachute Trico (#22 - 24), Chubby Chernobyl (#10-12),  and Griffiths Gnat (#22 - 24).
      • Need flies for your trip? FlyCast has collaborated with our friends at Anglers All ​to package a dozen flies that are hot in Eleven Mile Canyon right now - Click here for hand selected flies

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Credit: Colorado Division of Water Resources
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Weather Provided by Weather Underground

Detailed River Info:


The Eleven Mile section of the South Platte is a gorgeous stretch of river that offers anglers amazing fishing year round. The canyon experiences some great hatches throughout the warmer months and because it's a tail water, it can be fished in the winter. As you explore this river you'll notice that it has blended characteristics of the Cheesman Canyon and Deckers sections of the South Platte. While the best fishing usually occurs within two miles of the dam, the road that parallels the river makes it easy to jump in and out of the car to explore different sections. Eleven Mile has quickly become one of our favorite places to fish.


The Eleven Mile stretch of the South Platte offers a wide range of features that caters to any style of fly fisherman. The canyon sections of the river provide deep pools for the streamer junkie and the nymph fisherman who likes to sling around a lot of weight and drift flies down deep to try and catch a picture worthy fish. Other sections of the river remind us more of Deckers with medium depth riffles, runs and tail outs. Considering this section is a tail water, the standard South Platte flies are the way to go. Classic examples are size 18 - 24 RS2's, Top Secrets and Zebra Midges. Other than the beauty, our favorite part about this river is it's ease of access and the ability to fish 2-4 sections in a day. Our favorite thing to do is drive up close to the damn, fish a quarter mile section, jump back in the car and move down river until we find another quality section to fish. No need to haul around a big back pack either! With the road so close to the river, you can access your lunch and river beers with ease! 


River Access:

The Eleven Mile  section of the South Platte river is easy accessed from County Road 96. County Road 96 is a dirt road that starts in Lake George and runs along the river up to the dam. The road consists of pull-offs and designated parking lots making it easy to jump in and out of the car to fish different sections of the river. One thing to be aware of is the $7 entrance fee that needs to be paid to enter the canyon. Plan on bringing a check or cash to pay this fee.  

© 2019

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