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Fishing Information

South Platte River - 11 Mile Canyon

62 cfs
10 mph
73 °F
Weather @SOUTH PLATTE BASIN - Updated June 12, 2021 - 11:01am by OpenWeather

Current River Flow Updates

Latest update: 6/4/2021--

Flows for 11 Mile Canyon are still around 55 CFS this week. There has been plenty of adult baetis present in the canyon lately, so dust off those dry fly boxes. Parachute adams, sparkle duns, Griffith's gnats, & other similar dries have been fooling fish on top. Flashy egg patterns (Glo-bug chartreuse/pink #12-14), midges (Neon Nightmare midge pink/orange #18-20, and baetis nymphs (RS2 emerger dun/olive/black #18-24, FB pheasant tail #14-20) are working underneath indicators. Streamers have also been effective lately- you'll be surprised with how well fish respond to a big meal here. Barr's Meat Whistle and Lil Kim's are working well on floating lines with hybrid strip/swing retrievals. Manage your depth and amount of weight as you fish different water.

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 62 cfs
  • Wind 10 mph
  • Temp 73 °F
  • High/Low 44/76

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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