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Fishing Information

South Platte River - 11 Mile Canyon

0 cfs
1 mph
49 °F
Weather @SOUTH PLATTE BASIN - Updated September 18, 2020 - 7:02am by OpenWeather

Current River Flow Updates

Latest update: 9/14/2020 -- The flows at 11 Mile Canyon have decreased. For point fly purposes, heavy jigged patterns work great. CDC pheasant tails, hare's ears, chartreuse copper johns, and girdle bugs are all great options when accompanied by a heavy tungsten bead. Mayfly activity still remains strong throughout the canyon. Expect tricos around mid morning and other psuedo's throughout the day. If you find yourself among a pod of risers, be ready to switch to dries. One of our favorite trico rigs for 11 Mile Canyon would be a size #14 purple haze trailed by a size #22 trico. The trailing trico can be fished either on the surface or just in the film- for this purpose we usually don't put any floatant on the trico. Mayer's tails up trico, black RS2's, or griffith's gnats in sizes no larger than a #20 work great here. Expect to see some good caddis activity as well. Any adult caddis with a tan or olive under body in sizes #14-16 is a good call when fishing dries. As always, feel free to stop by the shop so we can help set you up for the canyon.

Historical River Flow

River Information

11 Mile Canyon is one of Colorado's most famous trout fisheries in every way possible. As a fishery that boasts more than 3,000 fish per mile and is known as one of the most scenic stretches of the South Platte River, you can assume that these trout are seeing some sort of angling pressure 365 days a year. The rainbow trout, brown trout, and cutthroat trout that call this river home are not the easiest fish to entice. Make sure you have a large assortment of small midges and baetis patterns for the winter months and shoulder seasons. Summertime in the canyon can produce some of the most abundant dry fly hatches you will ever see in your lifetime. No matter what time of year you will be fishing 11 mile canyon, tippet selection will make or break your success. Small tippet sizes for both nymph fishing and dry fly fishing will increase your chances of fooling these fish to eat a fly. One of the biggest keys to success in the canyon is your eyes. Make sure to have a good pair polarized sunglasses and use sight fishing to your advantage.

Seasonal Conditions

In the Summer Months, 11 Mile Canyon sees an abundance of bug life with key hatches being midges and baetis. Dry fly fishing can be lights out in the warm months so always be prepared with a large assortment of dry flies. Moving into the colder months and dead winter the fish turn to mostly small midges. Nymphing 20-26 midges is the ticket in those cold months.

Additional River Information

South Platte River below 11 Mile Reservoir

SOUTH PLATTE BASIN River Gauge View Detailed Information

  • Flow 0 cfs
  • Wind 1 mph
  • Temp 49 °F
  • High/Low 50/82

River access

To get to 11 mile Canyon you take US 24 until you hit Lake George, then you will go south on CR 96 and follow the signs to 11 Mile Canyon.

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