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Best channel catfish lakes in Montana

108 Montana waters hold channel catfish, 107 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. Scent-driven bottom feeder. Holes, channels and inflows — best after dark.

1. Bighorn Lake — 447 ft max · Walleye, Sauger, Crappie, Channel CatfishWhy #1: mapped size signal; contours are approximated · 3 public access sites
2. Bull Lake (Lincoln) — 60 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #2: survey-backed contours receive the ranking's data-quality boost · 1 public access site
3. Red Rock Lake, Upper — 5 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #3: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
4. Echo Lake (Flathead) — 70 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #4: survey-backed contours receive the ranking's data-quality boost · 1 public access site
5. Elk Lake (Beaverhead) — 62 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #5: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
6. Yellowtail Afterbay Reservoir — 46 ft max · survey depth data · Walleye, Sauger, Channel Catfish, Rainbow TroutWhy #6: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
7. Frank Lake — 40 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #7: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
8. Aero Lake, Upper — 175 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #8: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
9. Horseshoe Lake (Lincoln) — 130 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #9: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
10. Thompson Lake, Middle — 160 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #10: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
11. Aero Lake, Lower — 180 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #11: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
12. Hidden Lake (Madison) — 72 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #12: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
13. Lake Agnes — 59 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #13: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
14. Black Canyon Lake — 180 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #14: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
15. Widewater Lake (Carbon) — 100 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #15: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
16. Castle Rock Reservoir — 40 ft max · survey depth data · Largemouth Bass, Smallmouth Bass, Walleye, Northern PikeWhy #16: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
17. Rough Lake (Park) — 110 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #17: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
18. Bean Lake — 21 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #18: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
19. Sunburst Lake — 200 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #19: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
20. Twin Lakes (Beaverhead) — 46 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #20: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
21. Boulder Lake — 90 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #21: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
22. Thompson Lake, Upper — 100 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #22: survey-backed contours receive the ranking's data-quality boost · 1 public access site
23. Arch Lake — 110 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #23: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
24. Echo Lake (Granite) — 25 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #24: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
25. Lightning Lake — 120 ft max · survey depth data · Smallmouth Bass, Walleye, Northern Pike, CrappieWhy #25: survey-backed contours receive the ranking's data-quality boost · no verified access record attached

…plus 83 more Montana waters holding channel catfish.

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When to fish channel catfish in Montana

• Spring 3–12 ft — Warm inflows and shallow mud flats after rain.
• Summer 8–25 ft — Deep holes by day; cats roam shallow flats to feed at night.
• Fall 10–30 ft — Fish concentrate in river/creek channels and deeper holes.
• Winter 20–40 ft — Stacked in the deepest holes; slow natural baits.

Also in Montana: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best sauger lakes · best northern pike lakes · best crappie lakes · best bluegill lakes · best rainbow trout lakes · best muskellunge lakes · best yellow perch lakes · best common carp lakes · best lake trout lakes · best brown trout lakes · best brook trout lakes · best kokanee lakes · best lake whitefish lakes · best burbot lakes · best arctic grayling lakes · best cutthroat trout lakes · best pumpkinseed lakes

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