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Blue River

For Denver area flyfishers, the Blue River, which rests just an hour-and-a-half west of the city off I-70, is an excellent after-work and short weekend option. However, due to its location, it can suffer from crowding.

Despite its location and a good population of trout, not many people consider the Blue their favorite river. However, for those who know the Blue, “Big trout,” “Broken tippet” and “the one that came off,” are all phrases that are commonly heard as those anglers head home from the river.

It hasn’t always been that way; improvements on the Blue over the last four or five years have benefited the fishery. New catch-and-release regulations to strengthen the population of larger fish and the fact that the rainbows, browns, and brookies in this river have bellied up to a diet of seafood – a white shrimp called Mysis – have played a big part in these improvements.

The Blue below Dillon Reservoir is not a typical Colorado tailwater. In fact, fishing the Blue below Dillon is a somewhat urban experience – it flows through Silverthorne, and those fast food joints, gas stations, and factory outlet stores make a strange setting for a blue ribbon trout stream.

River description excerpted from Flyfisher's Guide to Colorado by Marty Bartholomew

River description excerpted from Flyfisher’s Guide to Colorado by Marty Bartholomew

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Latest Guide Report

Fishing Report Date: 02-06-2015

The Blue River continues to produce some great fish now that the dam work is complete. Flows have settled in just under 200 CFS as they have now disconnected the top siphon system and are sending all water through the bottom of the dam. This means it’s a mysis shrimp bonanza in town. Word is definitely out about the good fishing though, so be prepared for plenty of company. Be courteous to your fellow anglers and try to give folks a little space or a high five.There’s plenty of open water to go around. We’re pulling plenty of larger fish, and some extremely colorful browns.

Your starting lineup should include some type of mysis in the mix, like the Minute Mysis, BTS Mysis, Charlie’s Mysis etc. We’ve had best success on sizes 16-18. Other small midges are also finding fish such as Pure Midge Larva in red and cream, Black RS-2′s in #22, #22 Chocolate Emergers, #18 Two Bit Hooker, #20 Rainbow Warrior, and #22 UV Emergers.

Just a note that we’re seeing plenty of beat up fish (notice how one of these is missing a pectoral fin). Just a reminder to pinch those barbs or use barbless hooks, slowly lift your flies at the end of the drift to minimize snags, and keep them in or just above the water. With the potential of high caliber fish in the Blue, we also recommend to have a large, rubber material net to safely control the fish during hook removal. Go have fun!

Blue-River-2-5-2015-1 Blue-River-2-5-2015-2 Blue-River-2-5-2015-3

Report Statistics
5/5Time on Water:
Number of Anglers:
Hoook Ups:
Fish Landed:
Weather Experienced

Temperature: 45
Wind Conditions: Light-Breeze
Precipitation: None
Water Observations

Water Temperature: 38
Flow Level: 195 CFS
Runoff? Clear
Wallace Westfeldt

Report Submitted By: Wallace Westfeldt

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Blue River Water Flow Graphs