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Lower Boulder Creek Fishing Information
Town Section - near Boulder, CO
Boulder Creek is one of the more enjoyable streams to fish that are close to town. This section in particular flows right through town and has a ton of easy access and hundreds of little brown trout to catch. From Arapahoe all the way up to Eben G Fine Park, you can catch eager trout on dries, nymphs and streamers in every likely spot. These fish, though they see more and more pressure these days, still remain fairly easy to catch. If you learn to watch you backcast, you can land a lot of little brown trout in this river. If you try to stick to your traditional overhead cast, you’ll find more trees than fish.
There is an easy walking path right along the river and there is an abundance of holes, runs and riffles. Don’t overlook any of the water as you’ll find fish are spread out well through the entire river. Dry Droppers are best for most of the year, though nymphing does best in early winter and early spring. The creek freezes over most years in Jan – March, but if the temps warm up you can find some fish even in the dead of winter in the holes.
This sections only weakness is the tube hatch of college kids that float down the river from 10 am to 9pm daily it seems during June to August. When the flows drop, the tubers find more rocks than water and start to give up. For this reason the best seasons are spring and late fall to fish this river and early morning before the college kids are up. The fish don’t seem to mind the tubers but it can be frustrating in certain sections to be interrupted and other sections are better to fish when the tube hatch is strong.
Recently there have been some larger cutbows up to 16” in the river that came in from the flood in 2013. They live up next to Boulder Library in the most popular section to fish. Large dry flies and big streamers will coax these fish to your net. The entire river is catch and release in town so please practice catch and release especially during spawning times and if you catch larger fish. Fish above 14” are a prize in this river and should be released safely and quickly using our catch and release guidelines.
Fish: Many Small-Sized Fish
Best Techniques: Dries & Nymphs
Best Seasons: Spring - Fall
River Type: Small Freestone
Fish Types: Rainbow Trout, Cutbow Trout, Brown Trout
Dog Friendly: Yes but Leashed
Located in the South Platte River Basin near Boulder, CO
Fishable Seasons & Current Weather
The best seasons to fish this river are Spring - Fall. See the current weather reports for the next 5-6 days listed below for the nearest city.
wind: 7mph E
H 60 • L 51
Weather from OpenWeatherMap
Knowing what flies to use is only have the battle. You have to know when the insects are active on the water and when it's likely the trout are feeding on them. Refer to our hatch charts below to understand when the insect categories and some of the possible hatches on the river.
Midges hatch year round, but their importance is from September through winter into April. During the warmer months, the trout often focus on larger insects as they are more active on the water like mayflies, caddis and stoneflies.
Aside from Blue wing olives, mayflies are active most commonly from May to August in Colorado. There are many different mayfly hatches found on most rivers and the most common are listed below.
Blue Wing Olive: September throut winter to April
Pale Morning Dun: June to Mid September
Colors: White, Yellow
Sizes: #14 - #20
Green Drakes: June to August
Sizes: #8 - #14
Caddis hatch starting early in May and continue to the end of October.
Colors: Olive, Green, Yellow, Tan, Orange, Brown and Black.
Sizes: #10 - #20
We have some great stonefly hatches in Colorado and while not all rivers carry all species of salmonflies, you can often fish stonefly adult patterns with confidence from May to September. Start off in bigger sizes and get smaller till September hits (size 8 - 16)
Little Black Stone: January to May during warm sunny days.
Colors: Black, Grey
Sizes: #16 - #20
Yellow Sally Stonefly: Mid June to August
Colors: Yellow, Tan
Sizes: #12 - #18
Terrestrials don't hatch since they are out of the water, but they can have importance starting in Mid April and ending in September.
These are the the top flies we sell for this river. Use the hatch chart above to know what flies you will want to have in your fly box during your adventure on the river and then select the flies here 30 days before your trip to get them at a great price. All of our flies are hand tied to each order to ensure quality and to keep our prices low for you.
Click on a fly below to select a size and color for purchase.
If you need an easier solution than selecting each fly and size, try out our top fly assortments for this river that will put all the flies you need in a single order for this river. We've already selected the flies we use in our fly box for this river including the sizes and colors and put them in these assortments so you can fish with the confidence that you have the right flies in your box.
Click on any of the pictures to see what flies, colors and sizes we recommend in each assortment.
Use these epic resources to get ready for your adventure. Whether you're planning your trip, learning your insects, improving your fishing with expert tips or getting detailed resources from the USGS streamflows or DoW, we got you covered to help you find the river and find the success you want.