Colorado Fly Fishing Reports - Courtesy of The Flyfisher Group


Fishing Conditions: GREAT

Report Rating: GREAT Crowd Rating: Crowded

Fly Fishing Report Date:

Sunday, Apr 24, 2016

Colorado Stream Update: Blue Wing Olives are everywhere!

Current Conditions at 11 Mile Canyon:

BWOs are out in full force here in Eleven Mile Canyon right now and the trout are in a feeding frenzy! Barr's Emerger, Mercury RSIIs, and Biot Emergers are all working subsurface but when the trout are sipping off of the surface switch to a size 20 BWO Comparadun for best results. Also, stick with 5x and even better would be 6x, as these fish see quite a bit of pressure.

Flows have been stable and nymph fishing with small midges and mayflies is the name of the game. All the sections of the South Platte are flowing at a very manageable flow. Lots of bugs on the water and the fish are eating.  The fishing is great.  Clear skies and 52-55 degree weather. The water temperature was between 44-47 degrees and Crystal Clear.

Weather & Water Conditions

Weather Water
Temp: 52-55 Temp: 44-47
Sky: Clear Flow: 66
Wind: None Clarity: Crystal Clear
Precip: None Runoff: No 

Likely Catch

Species: Cutthroat Greenback Cutthroat Female
Greenback Cutthroat Male
Weight: 1 lbs 0 oz
Length: 16 inches
Girth: 6 inches

Current Insect Hatches at 11 Mile Canyon

Insect Type: Mayfly Blue Winged Olive Emerger Illustration Blue Winged Olive Nymph Illustration Blue Winged Olive Adult Illustration
Insect: Blue Winged Olive
Color: Charcoal Gray
Size: 20

Recommended Flies for 11 Mile Canyon

Fly: Blue Winged Olive Blue Winged Olive
Color: Olive
Size: 20
Fly: Blue Winged Olive Emerger Blue Winged Olive Emerger
Color: Light Olive Brown
Size: 18
Fly: Rs2 Emerger Rs2 Emerger
Color: Gray
Size: 20

Colorado Hatch Conditions for Early May

Insects Color Dates Emergence Size Spinner Fall Illustrations
© The Flyfisher Group


American Grannom Bright Green to Greenish Brown Mar 1 -
May 15
Early Morning & Afternoon 10-14 NA
American Grannom Larva illustration American Grannom Emerger illustration American Grannom Adult illustration
Little Tan Short Horn Sedge Dark Brown to Yellow Mar 1 -
Aug 30
Sporadic 14-16 NA
Little Tan Short Horn Sedge Larva illustration Little Tan Short Horn Sedge Emerger illustration Little Tan Short Horn Sedge Adult illustration


Blue Winged Olive Light Olive Brown to Brown Olive Mar 1 -
Nov 15
Clouds & warmest part of day 16-18 Evening
Blue Winged Olive Nymph illustration Blue Winged Olive Emerger illustration Blue Winged Olive Adult illustration
Western Black Quill Purplish Black to Grayish Brown Apr 1 -
Jun 30
Mid Morning 14-12 Evening
Western Black Quill Nymph illustration Western Black Quill Emerger illustration Western Black Quill Adult illustration


Black Midge Blackish to Black Apr 1 -
Nov 15
All Day 18-20 2-3 Hours
Black Midge Larva illustration Black Midge Emerger illustration Black Midge Adult illustration
Chocolate Brown Midge Brown to Chocolate Feb 15 -
Dec 15
All Day 20-22 2-3 Hours
Chocolate Brown Midge Larva illustration Chocolate Brown Midge Emerger illustration Chocolate Brown Midge Adult illustration
Micro Black Midge Blackish to Black Mar 1 -
Nov 15
Morning 22-26 2-3 Hours
Micro Black Midge Larva illustration Micro Black Midge Emerger illustration Micro Black Midge Adult illustration
Snow Midge Gray to Charcoal Jan 1 -
Dec 31
Warmest part of day 24-28 2-3 Hours
Snow Midge Larva illustration Snow Midge Emerger illustration Snow Midge Adult illustration


Micro Black Dark Brown to Black Jan 1 -
May 15
38-44° Water Temps Heat of Day 18-22 NA
Micro Black Nymph illustration Micro Black Adult illustration
Skwala Stone Dark Brown to Yellow Olive Mar 1 -
May 15
38-47° Water Temps, Late afternoon and evening. Riffles and bankwater near foliage. 6-12
Skwala Stone Nymph illustration Skwala Stone Adult illustration
Winter Black Black Brown to Reddish Olive, Mottled Brown Apr 1 -
Aug 15
Cold Mountain Streams and Small Ponds 18-22 NA
Winter Black Nymph illustration Winter Black Adult illustration


Beetle Brownish to Black May 1 -
Nov 30
All Day 10-18 NA
Beetle  illustration
Black Ant Black May 1 -
Nov 15
All Day 20-24 NA
Black Ant  illustration
Red Ant Red to Orangish May 1 -
Oct 15
All Day 18-22 NA
Red Ant  illustration

Weather for 11 Mile Canyon

Current: 23 °F    Mist    Wind: 14 MPH NE
Current Condtions

Temperature: 23 °F
Humidity: 92%
Wind: 14 mph NE
Pressure: 14.82 psi
Cloud Cover: 0%

Sunday's Forecast
weather forecastModerate snow
High: 31 °F
Low: 13 °F
Wind: 12 mph ENE
Monday's Forecast
weather forecastThundery outbreaks in nearby
High: 42 °F
Low: 25 °F
Wind: 7 mph SE
Tuesday's Forecast
weather forecastSunny
High: 46 °F
Low: 27 °F
Wind: 7 mph W

Archived Fishing Reports for 11 Mile Canyon