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Fishing Information

Blue River - at Silverthorne

59 cfs
8 mph
27 °F
Weather @COLORADO BASIN - Updated January 23, 2021 - 10:01am by OpenWeather

Current River Flow Updates

Latest update: 1/22/2021 --

Flows below Dillon haven't changed much and neither has the fishing. The stretch through town is very wadable and sight-fishable at 57 CFS. North of town is beginning to thaw but water temperatures are still very cold. We have been having good action on smaller midge/baetis/mysis patterns in sizes #18-24. Copper Johns (Purple #20), Skinny Nelsons (#20), sparkle wing RS2s (Olive #18), Neon Nightmare midges (Pink #22), Juju baetis (Purple #20), and Charlie's mysis (#18) are all working well for small nymphs. We have even gotten a few good strikes on some bigger attractor patterns- Floss worms (Red #18) and Glo-bugs (Oregon cheese #14). We have been using a single BB sized split shot and changing up our depth until we find something that works for us. 5-6X tippet has made a big difference for us lately.

Historical River Flow

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 are abound here and the fish are typically very aesthetically pleasing in coloration and size due to the protein rich diet provided by the dam of Dillon Reservoir.

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 aesthetically Mysis Shrimp should be your focus. Small streamers can also be protein-rich during the low light hours. This river is fishable year round and sees no shortage of anglers.

Additional River Information

Blue River at Silverthorne

COLORADO BASIN River Gauge View Detailed Information

  • Flow 59 cfs
  • Wind 8 mph
  • Temp 27 °F
  • High/Low 9/29

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, particularly in and around 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 alongside 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.
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