Overall River Rating:


Blue River - at Silverthorne Fly Fishing Report

Last update 09/10/16 - Are around the 113cfs range. Fish will be moving around so work on sighting those guys! Still not a lot of changes since our last report. The general tailwater fly selection consists of worms, mysis, eggs, baetis, caddis, and midge patterns in the #16 - #22 range. We recommend reducing your tippet sizes back to 4X - 6X range with the drop. Some of our favorites in shop: #18-#20 Rojo Midges, Brassie, Zebra Midge, Two Bit Hookers, RS2's, Flossy Worms, GloBugs, Charlies Mysis, Stalcup Mysis, Jujubee Midges, Juju Beatis, Stalcup Baetis, etc. . For dries in town, aim for small caddis, Yellow Sallie imitations, Stimulators, and beatis imitation dries as well as terrestrials such as the Chubby Chernobyl, Hippie Stomper, and Amy's Ant.

River Information

The Blue River through Silverthorne offers anglers the opportunity to catch a 20" trout in the morning and then shop at the Gap in the afternoon. While it may seem strange to park in an outlet mall's parking lot and get wadered up next to a family looking for some afternoon shopping, the fish that reside here can quickly refocus that distraction. This stretch of river sees considerable pressure, however the fish typically respond favorably to a good dead drift. Sight fishing opportunities abound here and the fish are typically very aestheically pleasing in coloration and size due to the protein rich diet provided by the dam of Dillon Reservoir.

Match the Hatch

Shop All Flies

Trouts proudly offers only premium quality Umpqua flies at the best prices available. These aren't cheap knock off and "artisan" patterns commonly found elsewhere on the internet. Tied by the world's finest tiers using only the highest quality materials.

Chernobyl Ant
Size 8-10
RS2 Midge
Size 20-22
Mayer's Tube Midge
Size 18-22
Poison Tung Nymph
Size 18-20
Epoxy Mysis Shrimp
Size 18-20
Nitro Caddis Pupa
Size 14-18
Electric Caddis
Size 18
Amy's Ant
Size 10-14
JuJu Baetis
Size 20-22
Tung Rainbow Warrior
Size 20-22

Seasonal Conditions

In true tailwater fashion, the flies you need to catch fish here are typically the same year round. Nymphing will be the rule throughout the majority of the year, however some good summer dry fly fishing can exist given the right conditions. Midges, Baetis, Caddis and the ever popular Mysis Shrimp should be your focus. Small streamers can also be effective during the low light hours. This river is fishable year round and sees no shortage of anglers. 

River Access

The Blue River as it runs through Silverthorne is considered Gold Medal Water and is deemed Catch and Release using only artificial flies and lures.  Access is plentiful in this area, particulalry in and arond the Outlet Mall.  Once you get a bit North of Town, access does become more limited.


  • From Iron Bridge downstream to the Forest Service Building is all public water.  Access is made particularly easy by using the bike path along side the river.
  • Retreat on the Blue, access is limited to the west side of the river.
  • Blue River Run Development, access is limited to the west side of the river only, and anglers must enter easement entrances.
  • The Ponds Development, access is available on both sides of the river.
  • Cottonwood Park Access, access is limited to the west side of the river only.