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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: 08-29-2016

The Blue River is fishing fair to good in town. Nymph fishing is solid along the seams, and soft water.  Also work the fast stuff with a lot of weight. Small Baetis and Midge patterns presented with 6x flouro have been good. Good dry fly windows are becoming more consistent with afternoon clouds and the Baetis hatches that prefer these conditions to hatch. Try a CDC comparadun, small parachute, or film critic in sizes 18-22 for these sometimes picky eaters.

Go to Nymphs are Charlies mysis and BTS mysis, RSII’s, Egan’s Frenchie, Two Bit Hooker (red), and BTS Mayflies. Mornings will find fish looking to Midge hatches and patterns like UV midge, Olive Zebras, Top Secret Midges and Midge Bombs. Either tight lining or fishing under and indicator will produce.  When working up the bank, make sure you look for fish in close as spooking monsters 2 inches off the bank is common.


Report Statistics
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Weather Experienced

Wind Conditions: Calm
Precipitation: None
Water Observations

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Flow Level: CFS
Runoff? on
Zach Lass

Report Submitted By: Zach Lass

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Blue River Water Flow Graphs