Boulder Creek, flowing from the peaks of the Front Range through the heart of Boulder, Colorado, is a scenic, urban fishery known for its accessible trout fishing and picturesque setting. The creek meanders through rocky canyons and shaded tree-lined banks, offering diverse water types—from pocket water and riffles to deep pools and runs—making it a favorite among fly anglers. As the water transitions from a mountain stream to an urban creek, Boulder Creek provides anglers with the unique experience of fishing in a natural setting within minutes of the city. Whether you're after wild browns or rainbows, Boulder Creek promises a rewarding day on the water, surrounded by Colorado’s stunning landscape.
November on Boulder Creek brings classic late-fall conditions—crisp mornings, low flows, and eager trout. The creek is flowing at around 15-20 CFS, making it easy to wade but requiring stealth. Trout are concentrated in deeper pools and slower runs, especially as the water cools. With midges and occasional Blue Wing Olives hatching, this time of year is perfect for those who enjoy nymphing, with some small dry fly action in the afternoons.
Boulder Creek’s wild browns and rainbows are known for being active in colder months, especially with the right presentations. Midday is the sweet spot, as trout are more likely to rise to the surface in the warmer sunlight. While it’s a bit technical, Boulder Creek in November offers rewarding fishing with light tackle, small flies, and a stealthy approach.
Source: Colorado division of Natural Resources River Flow Station Reports
| Month | Primary Hatches | Effective Patterns |
|---|---|---|
| March | Midges, Baetis (BWO) | Zebra Midges (#20-24), Blue Wing Olive (#18-22) |
| April | Midges, Baetis, Caddis | Black Beauty (#18-22), Elk Hair Caddis (#16-18) |
| May | Baetis, Caddis | Blue Wing Olive (#18-20), Pheasant Tail (#16-18) |
| June | Caddis, Stoneflies | Elk Hair Caddis (#16), Stimulator (#14-16) |
| July | Caddis, Yellow Sallies | Yellow Sally (#14-16), PMD Emerger (#18-20) |
| August | Tricos, Caddis, Terrestrials | Trico Spinner (#22-24), Parachute Hopper (#10-12) |
| September | BWOs, Midges, Caddis | BWO Parachute (#18-22), Black Ant (#18-20) |
| October | BWOs, Midges | Blue Wing Olive (#18-22), Zebra Midge (#20-24) |
| November | BWOs, Midges | BWO Emerger (#18-22), Black Beauty (#20-24) |
| December - February | Midges | Griffith’s Gnat (#20-24), WD-40 (#18-22) |
Seasonal Tip
During cooler weather, aim for fishing during the warmest part of the day. Look for trout holding in deeper pools or slow-moving sections, and approach quietly to avoid spooking them.
Dry Fly
If you see a midday hatch, small BWOs are effective. Focus on slow pools and runs where trout rise cautiously in clear water.
Nymphing
A double-nymph rig with a Black Beauty and small midge pattern will produce well. Drift through riffles and tailouts, where trout stay active and feed near the bottom.
Streamer Fishing
Mini leeches or small Woolly Buggers are great for targeting larger fish. Work slowly through the deeper sections to draw out any lingering big browns.
Eben G. Fine Park
Betasso Preserve
Fourmile Canyon Creek Confluence
Boulder Creek has designated public fishing access points, so stay mindful of private property along certain sections. Catch-and-release practices are encouraged, as well as using barbless hooks to protect the fish. Ensure you have a valid Colorado fishing license, and always respect the local environment to maintain the beauty and health of this urban waterway.