Fishing spots, fishing reports, and regulations in
Old Dillon Reservoir
Logged catches
Top fish species at Old Dillon Reservoir
Check which species have trophy potential in Old Dillon Reservoir
Old Dillon Reservoir fishing reports
9 months ago
Colorado river cutthroat trout
length Β· weight
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Fishing regulations at Old Dillon Reservoir, CO
Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.
Fishing regulations in Colorado can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.
Below you will see fishing regulations for catching species as of May 14, 2025. To view regulations for a different fish species, please click on your preferred species in the drop-down.
FAQ about Old Dillon Reservoir fishing
- Cutbow - 3 members reported to have caught this fish
- Cutthroat trout - 3 members reported to have caught this fish
- Rainbow trout - 4 members reported to have caught this fish
- @cullenfahrney reported a nice Rainbow trout.
- @DFfishman reported a nice Colorado river cutthroat trout.
- @bsharpe4052 reported a nice Cutbow.
- @r.griggs reported a nice Cutthroat trout.
- @tomendean reported a nice Cutbow.
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