Big Thompson River
Apache Trout • Rainbow Trout
The Big Thompson River in Colorado is an excellent spot for fly fishing enthusiasts who seek a challenge. Brown and rainbow trout are the predominant fish species, and the river is famous for its big browns. The area is surrounded by mountains and offers scenic hiking and camping opportunities. The best time to visit is from June to October when the average temperature is in the mid-60s to low 70s. Fishing is best in the early morning or late afternoon when the fish are more active. Fishing tips include using light tippets, small flies, and stealthy approaches. Get driving directions.
Weather Outlook
Fish Species
Apache Trout
The apache trout is considered to be critically endangered by the IUCN.
Rainbow Trout
The rainbow trout is an extremely valuable species in any and all of its forms.
Nearby Fishing Destinations
Area Streamflow Levels
| Streamgauge | Discharge |
|---|---|
| Leavenworth Creek @ Mouth Nr Georgetown | 3 cfs / 3.49 ft |
| South Platte River At Englewood | 55 cfs / 1.44 ft |
| S Clear Cr Abv Lwr Cabin Cr Res Spilwy Nr Georgtwn | 3 cfs / 0.38 ft |
| Chicago Creek Blw Devils Canyon Nr Idaho Sprgs Co | -999 cfs / -1,310.72 ft |
| South St. Vrain Creek Near Ward | 5 cfs / 1.52 ft |
| Harvard Gulch At Harvard Park | 2 cfs / 9.91 ft |
| Harvard Gulch At Colorado Blvd. | 0 cfs / 9.54 ft |
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