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Duck Slough is a stream located in Polk County, Oregon, United States. It is most popular for fishing Largemouth bass, Bluegill, and Smallmouth bass.
Learn what time of year and day to go fishing at Duck Slough. Download Fishbrain today to look for new fishing spots, scout new fishing access, or prep for your next trip.

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 Oregon 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 March 31st, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Seasons
Bag limit
Memorable
Measurement
Aggregate
Lakes: 5 per day, 3 daily limits in possession unless noted under location exceptions.
Streams: No limit.
• No more than 3 over 15 inches in length in lakes.
• No minimum length in streams.
• Angling restricted to artificial flies and lures in streams. See location exceptions
where use of bait is allowed.
Lakes: Open all year.
Streams: Open during trout, salmon or steelhead seasons, except mainstem Willamette River and sloughs and tidewater areas of Columbia River tributaries downstream from Bonneville Dam are open all year.
For more information please see Oregon Sport Fishing Regulations
Micropterus nigricans
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