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When are Largemouth Bass biting on New Underwood Dam?
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Fishing regulations at New Underwood Dam, SD
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 South Dakota 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 Largemouth bass as of May 5th, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Seasons
Bag limit
Measurement
Aggregate
Possession limit is 10
Micropterus nigricans
Regulations for
FAQ about New Underwood Dam fishing
- Largemouth bass - 25 members reported to have caught this fish
- Channel catfish - 11 members reported to have caught this fish
- Yellow bullhead - 3 members reported to have caught this fish
- @dylan.hiatt reported a nice Channel catfish.
- @KNico reported a nice Black bullhead.
- @KNico reported a nice Northern pike.
- @5LAPPADABASSMON reported a nice Blue catfish.
- @5LAPPADABASSMON reported a nice Channel catfish.
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