Fishing · NW Larimer County
Big Thompson River, North Fork
A quiet stream in the Comanche Peak Wilderness Area — off the beaten path in Northwest Larimer County.
Toggle USGS Topo / Terrain / Satellite / Street (top-right) · red = special-regulation water, confirm current rules · waters © CPW Colorado Fishing Atlas
Big Thompson River, North Fork is a stream in the Comanche Peak Wilderness Area of Northwest Larimer County, at about 8,023 ft. It is one of the many lesser-known waters that thread this high, wild corner of the state — the kind of place that rewards anglers willing to wander off the main roads.
We are still gathering the specifics on this one — the species, the access, and how it fishes — and we’ll add them here, with photos, as we get to know it (or as you share what you know). Until then, here is the map and the way in.
The Water
Type
Stream
Elevation
8,023 ft
Setting
Comanche Peak Wilderness Area
Good to Know
- A valid Colorado fishing license is required — and it is always worth confirming the current, water-specific regulations before you fish.
- Sits in the Comanche Peak Wilderness Area of Northwest Larimer County, around 8,023 ft.
- We’re still building out this listing — species, stocking, access, and photos will be added as we learn more, or as anglers share them.
What’s Biting & What’s Stocked
The current stocking, the species, ice conditions, and the full Northwest Larimer fishing atlas — refreshed weekly — live in the app.
Coming soon — Larimer Wilds Fishing: offline maps, live GPS, and what’s stocked for every water up here, right in your pocket.
Built by Many Hands — Give a Little Back
Love this guide? Wear it. Every hat, tee, and cozy layer in our Red Feather Lakes collection helps us keep mapping the water and keeping this guide free — mountain apparel designed right here in the high country.
Shop the Collection →This fishery doesn’t sustain itself. Every trout is stocked and every acre stewarded by the public agencies we lean on for this guide — if you love these waters, please pitch in for them too:
- Colorado Parks & Wildlife — the stocking, the fishery & the Colorado Fishing Atlas Donate →
- Arapaho & Roosevelt National Forest (USFS) — the public land & lakes themselves Support →
- OpenStreetMap contributors — the Street basemap Donate →
- Google & USGS — location, ratings & topographic maps
Fishing details compiled by the Red Feather Lakes Travel Guide from the sources above. Photography by us — more of our own water images coming as we fish them.

