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Best flathead catfish lakes in Minnesota

17 Minnesota waters hold flathead catfish, 7 mapped with real state-agency depth surveys. Ranked below by size and depth-data quality — open any water to see exactly where to fish it: depth contours, scored spots with plain-English reasons, seasonal windows and bait picks. Solitary giant that lairs in log jams and deep holes by day and prowls at night — live bait only.

1. Lake Pepin — 50 ft max · survey depth data · Largemouth Bass, Walleye, White Bass, Northern PikeWhy #1: survey-backed contours receive the ranking's data-quality boost · 5 public access sites, 1 carry-in or shore-oriented
2. St. Croix River — 78 ft max · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #2: mapped size signal; contours are approximated · 7 public access sites
3. Minnesota River — 11 ft max · Walleye, White Bass, Channel Catfish, Flathead CatfishWhy #3: mapped size signal; contours are approximated · 10 public access sites, 1 carry-in or shore-oriented
4. Cannon River — 6 ft max · Smallmouth Bass, Walleye, Northern Pike, Channel CatfishWhy #4: mapped size signal; contours are approximated · 13 public access sites, 12 carry-in or shore-oriented
5. Lake Byllesby — 50 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #5: survey-backed contours receive the ranking's data-quality boost · 3 public access sites, 1 carry-in or shore-oriented
6. St. Croix River — 15 ft max · Smallmouth Bass, Walleye, Channel Catfish, MuskellungeWhy #6: mapped size signal; contours are approximated · 2 public access sites
7. Mississippi River Pool 8 (La Crosse) — 39 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, SaugerWhy #7: survey-backed contours receive the ranking's data-quality boost · 6 public access sites, 1 carry-in or shore-oriented
8. Mississippi River Pool 2 (Hastings) — 30 ft max · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #8: mapped size signal; contours are approximated · no verified access record attached
9. Mississippi River - U.S. Lock & Dam #1 Pool — 9 ft max · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #9: mapped size signal; contours are approximated · no verified access record attached
10. Mississippi River Pool 4 (Red Wing) — 37 ft max · survey depth data · Smallmouth Bass, Walleye, White Bass, SaugerWhy #10: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
11. Winona (South Bay) — 35 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #11: survey-backed contours receive the ranking's data-quality boost · 3 public access sites, 1 carry-in or shore-oriented
12. Vermillion River — 24 ft max · survey depth data · Smallmouth Bass, Walleye, White Bass, SaugerWhy #12: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
13. Mississippi River Pool 3 (Hastings to Red Wing) — 30 ft max · Smallmouth Bass, Walleye, White Bass, SaugerWhy #13: mapped size signal; contours are approximated · no verified access record attached
14. Mississippi River - Spring — 17 ft max · Largemouth Bass, Smallmouth Bass, Walleye, White BassWhy #14: mapped size signal; contours are approximated · 1 public access site
15. Mississippi River - St. Anthony Falls Pool — 9 ft max · Largemouth Bass, Smallmouth Bass, Walleye, Northern PikeWhy #15: mapped size signal; contours are approximated · 2 public access sites
16. Goodview — 26 ft max · Largemouth Bass, Walleye, Sauger, Northern PikeWhy #16: mapped size signal; contours are approximated · no verified access record attached
17. La Crosse River — 38 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, SaugerWhy #17: survey-backed contours receive the ranking's data-quality boost · no verified access record attached

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When to fish flathead catfish in Minnesota

• Spring 5–20 ft — Pre-spawn fish feed hard near wood cover and hole edges.
• Summer 8–30 ft — Day = log-jam lairs and deep holes. Night = shallow flats and bar edges with big live bait.
• Fall 10–35 ft — Fish concentrate near wintering holes — the year's best big-fish window.
• Winter 20–45 ft — Stacked and sluggish in the deepest holes.

Also in Minnesota: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best white bass lakes · best sauger lakes · best northern pike lakes · best crappie lakes · best bluegill lakes · best channel catfish lakes · best rainbow trout lakes · best muskellunge lakes · best yellow perch lakes · best freshwater drum lakes · best common carp lakes · best longnose gar lakes · best lake trout lakes · best brown trout lakes · best brook trout lakes · best lake whitefish lakes · best burbot lakes · best rock bass lakes · best cisco (lake herring) lakes · best splake lakes · best pumpkinseed lakes · best brown bullhead lakes · best lake sturgeon lakes

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