Montana Lakes With Lake Trout

38 counted Montana lakes list Lake Trout in Montana Fish, Wildlife & Parks records. The largest is Fort Peck Lake at 233,053 acres.

#	Lake	County	Surface Area	Max Depth
1	Fort Peck Lake	Valley	233,053 acres	-
2	Flathead Lake	Lake	122,132 acres	About 380 ft
3	Lake Elwell	Liberty	14,842 acres	About 150 ft
4	Noxon Reservoir	Sanders	7,592 acres	-
5	Lake McDonald	Flathead	6,867 acres	-
6	Saint Mary Lake	Glacier	3,933 acres	-
7	Whitefish Lake	Flathead	3,315 acres	About 220 ft
8	Swan Lake	Lake	3,269 acres	About 120 ft
9	Cabinet Gorge Reservoir	Sanders	2,848 acres	-
10	Georgetown Lake	Granite	2,818 acres	About 25 ft
11	Lower Saint Mary Lake	Glacier	2,177 acres	-
12	Bowman Lake	Flathead	1,722 acres	-
13	Kintla Lake	Flathead	1,665 acres	-
14	McGregor Lake	Flathead	1,522 acres	About 220 ft
15	Tally Lake	Flathead	1,211 acres	About 450 ft
16	Logging Lake	Flathead	1,113 acres	-
17	Upper Waterton Lake	Glacier	1,009 acres	-
18	Thompson Falls Reservoir	Sanders	969 acres	-
19	Quartz Lake	Flathead	869 acres	-
20	Lindbergh Lake	Missoula	815 acres	About 120 ft
21	Upper Stillwater Lake	Flathead	592 acres	-
22	Holland Lake	Missoula	414 acres	About 140 ft
23	Harrison Lake	Flathead	391 acres	-
24	Spar Lake	Lincoln	383 acres	About 200 ft
25	Lake Blaine	Flathead	382 acres	-
26	Silver Lake	Deer Lodge	300 acres	-
27	Elk Lake	Beaverhead	283 acres	About 62 ft
28	Glenns Lake	Glacier	262 acres	-
29	Lower Stillwater Lake	Flathead	250 acres	About 50 ft
30	Cosley Lake	Glacier	222 acres	-
31	Lower Thompson Lake	Lincoln	202 acres	About 140 ft
32	Lower Quartz Lake	Flathead	167 acres	-
33	Kersey Lake	Park	115 acres	-
34	Rogers Lake	Flathead	85 acres	-
35	Twin Lakes	Beaverhead	85 acres	About 46 ft
36	Rainy Lake	Missoula	82 acres	About 29 ft
37	Cygnet Lake	Missoula	20 acres	-
38	Sailor Lake	Madison	13 acres	-

Source: Montana Fish, Wildlife & Parks lake data. Verified October 30, 2026.