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Boulder Creek Fishing Report

Our Boulder Creek fishing report will give you an idea of what flies to use and general conditions you can expect. Boulder Creek is one of Boulder’s most prized possessions, running from Barker Reservoir through town past the campus of CU and out into the flats of Colorado. From start to finish this is a fine trout fishery full of wild browns, rainbows, and even some colorful brookies up towards the town of Nederland. If you can really devote some time to fishing the creek there are even a few cutthroats to be found. Go for the Boulder Creek grand slam!

The creek is full of opportunistic fish that are eager to take a dry fly, so take advantage of the great caddis, blue wing olive and terrestrial fishing. The midges that call Boulder Creek home are active all year and are always a safe bet come the colder months of the year. This is a great chance to get out and test some of those midge patterns that you have been drooling over all winter. The caddis hatches on the creek makes for some of the best evening fishing Boulder has to offer.  A simple dry fly with a dropper hanging off the back will light up fish all day long and into the night.

The creek fishes well from start to finish, hitting bigger browns outside of town, or even in town, more rainbows than you can stick in one day up in the canyon and brookies that will keep you grinning until dark near the upper stretches of the creek. The fish size averages around 8in, but there are plenty of larger fish to be had in the creek.

Latest Guide Report

Fishing Report Date: 03-27-2015

Boulder Creek is fishing very well these days, but it is going through early spring changes. Fish are starting to move out of their winter lies, but slowly, particularly in the canyon. They are definitely more spread out in town. Surface strikes are slow, unpredictable, and sometimes picky. Midge hatches start the feeding activity, but BWOs, mostly small, are showing up too. Saw a couple of larger (first brood) BWOs. Fishing the surface midge hatch is like anywhere else: you have go small and drift very well.


Droppers are still the best producers, but they have to still be small and the canyon trout have been surprisingly picky. Yesterday, the winning fly (by far) was a green Tailwater Tiny #18. Town trout are eating a wide variety of droppers.  All of this should change rapidly with the warming air and water.

Report Statistics
3/5Time on Water:
Number of Anglers:
Hoook Ups:
Fish Landed:
Weather Experienced

Temperature: 67
Wind Conditions: Calm
Precipitation: None
Water Observations

Water Temperature: 44
Flow Level: 25 CFS
Runoff? Light-Stain
Wallace Westfeldt

Report Submitted By: Wallace Westfeldt

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Boulder Creek Water Flow Graphs