50 The "tailwater" section of Blue River through Silverthorne fishes fairly consistently year round. Water temps normally stay within the lower forties (fahrenheit), which doesn’t produce a large variety of hatches.  For the most part, small midge larva, and Mysis Shrimp (small clear/white shrimp inhabiting Dillon Reservoir), are staples of the trouts diet.  Things start to get more interesting if Dillon Reservoir reaches capacity and “spills” through the top release of the dam, instead of the bottom. This causes a larger variety of aquatic insects that live in the Blue River to become active, and therefore more available to trout.  

       The best technique is usually nymphing under a small, inconspicuous indicator. Adjust your weight and indicator depth depending on the depth of the piece of water you are working, and to the depth at which the fish are holding. Seeing rising fish is a possibility, as is seeing some action on streamers.  



Current Conditions:



The Blue 50cfs coming out of the bottom of the reservoir.



Right around the 40 degree mark. 




You can expect the water to be crystal clear most of the time! However, things such as an increase in flows and increases in atmospheric temperatures may

lead to stain in the water. Stain may also enter the system in the afternoons due to road melt runoff. 




Mysis Shrimp | midges | small mayflies(BWO and PMD)  | Yellow Sally nymphs | small caddis | leeches, smaller fish, worms etc. 


Flies to Try

Guides Choice Dozen $24.99



| Epoxy mysis #18 | Natural Pheasant Tail #18-22 | Mayfly Nymph BWO size 18-20 | RS2 Dun 18-22 | Jujubee Midge #18-22 | Miracle Midge #20-22 | WD-40 Chocolate and Black #18-22|



| Elk Hair Caddis Yellow #18 | Peacock Caddis #18 |  Extended Body BWO size 18-22 | Extended Body BWO #18-22|  Matthew's Sparkle Dun BWO | Griffith’s Gnat size 18-24 | Umpqua Adult Midge Dark 20-22 | CDC Morgan's Midge size 20-22



| Thin Mint #6 | Near Nuff Sculpin olive size 04-06 | Super Bugger Tan size 6 | Pop’s Bugger pearl/grizzly size 8 | Pine Squirrel Leech in black size 12 | Slump Busters in olive and natural | Crystal Bugger white sizes 8-12 | Halebop Leech wine no bead size 8 


guide tip of the week:

       The Blue's flows are at 70 cfs which is a good flow to fish this tailwater. With this flow, small bugs and fine tippet will be the name of the game for the foreseeable future. We are seeing a few Blue Wing Olives hatching, and midges as usual. A nymph rig with small natural  imitations of Baetis and midges have been working well for us recently. Sight fishing is the name of the game here so if you dont see fish- keep moving.  A tandem dry fly rig, featuring tiny midge or Baetis imitations as the second fly can also produce a few takes when fished to trout that seem to be looking up. 


Recent Media:

We love seeing and hearing about your outings as well. Send any fishing photos or stories  you want to share over to jacob@fishcolorado.com and we'll throw 'em up in the reports.


Our guides took to the Blue River in Silverthorne for an afternoon of sight fishing.

Taking a stroll through town. 

Sight fishing from the bridges. 


Jack found a feeding rainbow in the shallows. 

Got em'



Mid June:

A look at the river through town at 100 CFS...


Some trout have been taking advantage of the increased flow by moving into pockets closer to the banks to feed... 



Mid May:

Here are the results of some sein samplings from behind our shop in the Blue.  We are seeing strong numbers of tiny golden stonefly nymphs (size 18-20), and more sparse numbers of both Baetis nymphs size 18-22, and olive midge larva size 18-22.  




These "bugs" from our fly bins would do a good job of immitating the real bugs above...


(from left to right) | Tung Stud Nymph, size 18, olive | Camo JuJu Baetis, size 18 | Tungsten Split Case BWO, size 18 | Killer Mayfly Nymph, brown, size 18 | BWO Nymph, size 18 | Big Bear Baetis, size 20 | Pure Midge, cream/light olive |



Recent history:

We love seeing and hearing about your outings as well. Send any fishing photos or stories  you want to share over to jacob@fishcolorado.com and we'll throw 'em up in the reports.

11/3/20: We spent a day fishing in town with Kory Lewis to see how he fishes The Blue River. Sight fishing with very light indicator rigs was the name of the game. Kory was fishing a size 18-20 non-beaded pheasant tail as an attractor fly and a #22 gray RS2 Dun as his second fly. Not much weight was needed due to low flows. 


Kory Sight fished to a nice rainbow that ate the #22 gray RS2 


 Blue River Rainbows


We caught several brown trout as well. A pleasant sight to see in the Silverthorne section of The Blue. 

While sight fishing to a big rainbow, this brown decided to swoop in and eat the natural pheasant tail before the rainbow could. 




Learn More About the Blue River