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Best brown trout lakes in Montana

34 Montana waters list brown trout (official records or labelled estimates), 22 mapped with survey or official-chart depth data. Ranked below by size and depth-data quality, leading with the waters in our reviewed search catalog — open any water to see exactly where to fish it: depth contours, scored spots with plain-English reasons, seasonal windows and bait picks. Wary, nocturnal-leaning predator. Shorelines and inflows in cold months; the thermocline in summer.

1. Canyon Ferry Reservoir — 130 ft max · real survey depth contours · Largemouth Bass, Smallmouth Bass, Walleye, Northern PikeWhy #1: survey-backed contours receive the ranking's data-quality boost · 9 public access sites
2. Hebgen Lake — 75 ft max · real survey depth contours · Rainbow Trout, Brown Trout, Brook Trout, Lake WhitefishWhy #2: survey-backed contours receive the ranking's data-quality boost · 3 public access sites
3. Hauser Lake — 65 ft max · real survey depth contours · Walleye, Northern Pike, Rainbow Trout, Yellow PerchWhy #3: survey-backed contours receive the ranking's data-quality boost · 1 public access site
4. Yellowstone River — 10 ft max · Smallmouth Bass, Sauger, Rainbow Trout, Common CarpWhy #4: mapped size signal; contours are approximated · 10 public access sites
5. Beaverhead River — 10 ft max · Rainbow Trout, Brown Trout, Lake WhitefishWhy #5: mapped size signal; contours are approximated · 7 public access sites
6. Clark Canyon Reservoir — 91 ft max · real survey depth contours · Rainbow Trout, Common Carp, Brown Trout, Brook TroutWhy #6: survey-backed contours receive the ranking's data-quality boost · 4 public access sites
7. Madison River — 6 ft max · Rainbow Trout, Brown TroutWhy #7: mapped size signal; contours are approximated · 8 public access sites
8. Seeley Lake — 120 ft max · real survey depth contours · Largemouth Bass, Northern Pike, Rainbow Trout, Yellow PerchWhy #8: survey-backed contours receive the ranking's data-quality boost · 4 public access sites
9. Gallatin River — 8 ft max · Rainbow Trout, Brown Trout, Lake Whitefish, Cutthroat TroutWhy #9: mapped size signal; contours are approximated · 3 public access sites
10. Quake Lake — 120 ft max · real survey depth contours · Rainbow Trout, Brown Trout, Lake WhitefishWhy #10: survey-backed contours receive the ranking's data-quality boost · 1 public access site
11. Bighorn River — 8 ft max · Rainbow Trout, Brown TroutWhy #11: mapped size signal; contours are approximated · 3 public access sites
12. Bitterroot River — 6 ft max · Northern Pike, Rainbow Trout, Brown TroutWhy #12: mapped size signal; contours are approximated · 9 public access sites, 1 carry-in or shore-oriented
13. Blackfoot River — 8 ft max · Rainbow Trout, Brown Trout, Lake Whitefish, Cutthroat TroutWhy #13: mapped size signal; contours are approximated · 5 public access sites
14. Salmon Lake — 65 ft max · real survey depth contours · Largemouth Bass, Northern Pike, Rainbow Trout, Yellow PerchWhy #14: survey-backed contours receive the ranking's data-quality boost · 4 public access sites
15. Yellowtail Afterbay Reservoir — 46 ft max · real survey depth contours · Walleye, Sauger, Channel Catfish, Rainbow TroutWhy #15: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
16. Newlan Reservoir — 87 ft max · real survey depth contours · Rainbow Trout, Brown Trout, Brook Trout, KokaneeWhy #16: survey-backed contours receive the ranking's data-quality boost · 1 public access site
17. Missouri River — 11 ft max · Rainbow Trout, Common Carp, Brown TroutWhy #17: mapped size signal; contours are approximated · 10 public access sites, 3 carry-in or shore-oriented
18. Lake Helena — 12 ft max · real survey depth contours · Walleye, Northern Pike, Rainbow Trout, Yellow PerchWhy #18: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
19. Lake Inez — 72 ft max · real survey depth contours · Northern Pike, Rainbow Trout, Yellow Perch, Brown TroutWhy #19: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
20. Placid Lake — 93 ft max · real survey depth contours · Largemouth Bass, Rainbow Trout, Yellow Perch, Brown TroutWhy #20: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
21. Ackley Lake — 39 ft max · real survey depth contours · Rainbow Trout, Muskellunge, Brown Trout, Brook TroutWhy #21: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
22. Canyon Lake (Carbon) — 80 ft max · real survey depth contours · Largemouth Bass, Smallmouth Bass, Walleye, Northern PikeWhy #22: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
23. East Rosebud Lake — 20 ft max · real survey depth contours · Rainbow Trout, Brown Trout, Brook TroutWhy #23: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
24. Desolation Lake — 70 ft max · real survey depth contours · Brown TroutWhy #24: survey-backed contours receive the ranking's data-quality boost · no verified access record attached
25. Lake Josephine — 8 ft max · real survey depth contours · Largemouth Bass, Smallmouth Bass, Walleye, CrappieWhy #25: survey-backed contours receive the ranking's data-quality boost · no verified access record attached

…plus 9 more Montana waters holding brown trout.

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When to fish brown trout in Montana

• Spring 3–25 ft — Cold-water browns hug shorelines, river mouths and mud lines — often in a few feet of water early and late.
• Summer 25–60 ft — Browns sit at the thermocline by day and slide shallow after dark — the night troll takes the giants.
• Fall 5–30 ft — Spawn-run browns stage off tributaries and gravel shorelines, aggressive and territorial.
• Winter 5–35 ft — Browns feed all winter — nearshore when bait is in, deeper breaks otherwise.

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 channel catfish lakes · best rainbow trout lakes · best muskellunge lakes · best yellow perch lakes · best common carp lakes · best lake 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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