South Boulder Creek Fishing Report Header

South Boulder Creek

South Boulder Creek has to be one of the most scenic rivers within a half hour of downtown Boulder. This creek starts up in the Indian Peaks near the Moffat Tunnel and gains momentum on its journey towards the cool deep waters of Gross Reservoir. Below Gross Reservoir, South Boulder Creek becomes a great tailwater flowing through the Walker Ranch open space. This area is the most popular section of the creek due to the great hatches and consistent flows through the summer months. The access to this section is fairly easy taking visitors up and over Flagstaff Mountain, onto a dirt road, and into the wilderness.

There is no road following the creek so if you are looking for some solitude this is the spot. The aquatic insect activity in this part of the creek is incredible, it sees hatches of Caddis, BWO’s, PMD’s, Midges and great Terrestrial fishing.  South Boulder Creek might be your best chance for a big wild brown in Boulder County.  Every year anglers routinely catch browns in excess of 18 inches. The river heads east through some public and private water before dumping into Eldorado Canyon State park. After the plunge pools of Eldorado, the creek mellows out upon entering the flats of Boulder and eventually joins Boulder Creek.

Latest Guide Report

Fishing Report Date: 01-12-2015

We’re into the typical winter fishing conditions on S. Boulder right now. Flows have been holding steady around 80CFS for a while and warmer temperatures are about the only thing that will change the fishing. The fish are definitely stacked up in the deeper holes, but I did find some surprises in some of the swifter current. There was a nice midge hatch around 11, although the bugs were pretty small! I had the best success with an Arizona Prince and a Vegas Weekend up front, with either small midges like a foam wing emerger and a top secret midge trailed behind. Don’t be afraid to give a Charlie’s mysis or Minute Mysis a try too. On the warmer days try using a shallow dry-dropper rig with a size 22 midge (think smokejumper or griffiths gnat) in the shallower water to get some great winter dry fly action.

If you need any help tying any of the patterns, swing by the shop, we’d love to show you!

Here’s one of the colorful rainbows from the day…

Report Statistics
3/5Time on Water: 2 Hours
Number of Anglers: 1
Hoook Ups: 8
Fish Landed: 7
Weather Experienced

Temperature: 35
Wind Conditions: Calm
Precipitation: None
Water Observations

Water Temperature: 38
Flow Level: 85 CFS
Runoff? Clear
Erik Myhre

Report Submitted By: Erik Myhre

South Boulder Creek Water Flow Graphs

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