Lakes / Montana / Beaverhead County

Lakes in Beaverhead County, Montana

106 lakes counted in Beaverhead County - the largest is Clark Canyon Reservoir at 4,815 acres.

106

Lakes Counted

4,815 acres

Largest - Clark Canyon Reservoir

Beaverhead County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.

All Counted Lakes

#	Lake	County	Surface Area	Max Depth
1	Clark Canyon Reservoir	Beaverhead	4,815 acres	About 91 ft
2	Lima Reservoir	Beaverhead	4,422 acres	-
3	Upper Red Rock Lake	Beaverhead	2,948 acres	About 5 ft
4	Lower Red Rock Lake	Beaverhead	2,219 acres	-
5	Swan Lake	Beaverhead	383 acres	-
6	Elk Lake	Beaverhead	283 acres	About 62 ft
7	Lake Agnes	Beaverhead	109 acres	About 59 ft
8	Mussigbrod Lake	Beaverhead	105 acres	About 69 ft
9	Widgeon Pond	Beaverhead	90 acres	About 4 ft
10	Twin Lakes	Beaverhead	85 acres	About 46 ft
11	Lower Miner Lakes	Beaverhead	67 acres	About 33 ft
12	Hirschy Reservoir	Beaverhead	64.5 acres	-
13	Conklin Lake	Beaverhead	55 acres	-
14	Estler Lake	Beaverhead	48 acres	-
15	Pear Lake	Beaverhead	47 acres	-
16	Reservoir Lake	Beaverhead	41 acres	About 50 ft
17	Upper Miner Lakes	Beaverhead	40 acres	-
18	Pintler Lake	Beaverhead	39 acres	-
19	Sand Lake	Beaverhead	39 acres	About 55 ft
20	Fish Creek Lake	Beaverhead	38.5 acres	-
21	Brownes Lake	Beaverhead	37 acres	About 30 ft
22	Hamby Lake	Beaverhead	36 acres	-
23	Odell Lake	Beaverhead	33 acres	-
24	Mud Lake	Beaverhead	32.6 acres	-
25	Waukena Lake	Beaverhead	31 acres	-
26	Torrey Lake	Beaverhead	31 acres	-
27	Boot Lake	Beaverhead	29 acres	-
28	Crescent Lake	Beaverhead	29 acres	-
29	Baldy Lake	Beaverhead	28 acres	About 80 ft
30	Lena Lake	Beaverhead	25 acres	-
31	Morrison Lake	Beaverhead	23 acres	About 50 ft
32	Tendoy Lake	Beaverhead	21 acres	About 90 ft
33	Deerhead Lake	Beaverhead	21 acres	About 15 ft
34	Sawtooth Lake	Beaverhead	20 acres	About 60 ft
35	Anchor Lake	Beaverhead	20 acres	-
36	Ajax Lake	Beaverhead	19 acres	-
37	Hope Lake	Beaverhead	19 acres	-
38	Mystic Lake	Beaverhead	19 acres	About 50 ft
39	Kelley Reservoir	Beaverhead	18 acres	About 18 ft
40	Ferguson Lake	Beaverhead	16 acres	-
41	Stone Lakes	Beaverhead	15 acres	-
42	Black Lion Lake	Beaverhead	14 acres	-
43	Tub Lake	Beaverhead	14 acres	-
44	Barb Lake	Beaverhead	14 acres	-
45	Bear Lake	Beaverhead	14 acres	About 20 ft
46	Lily Lake	Beaverhead	14 acres	About 33 ft
47	Tahepia Lake	Beaverhead	14 acres	-
48	Slag-a-melt Lakes	Beaverhead	13 acres	-
49	Elbow Lake	Beaverhead	13 acres	-
50	MacDonald Pond	Beaverhead	13 acres	-
51	Minneopa Lake	Beaverhead	12 acres	About 7 ft
52	Lake Geneva	Beaverhead	12 acres	-
53	Berry Lake	Beaverhead	12 acres	-
54	Hopkin Lake	Beaverhead	12 acres	-
55	Little Lake	Beaverhead	12 acres	-
56	Grayling Lake	Beaverhead	11 acres	-
57	Schultz Reservoir	Beaverhead	11 acres	-
58	Van Houten Lake	Beaverhead	11 acres	About 8 ft
59	Bond Lake	Beaverhead	11 acres	-
60	Lake of the Woods	Beaverhead	10 acres	-
61	Rainbow Lake	Beaverhead	10 acres	About 33 ft
62	Elkhorn Lake	Beaverhead	10 acres	-
63	Lion Lake	Beaverhead	10 acres	-
64	Ridge Lake	Beaverhead	10 acres	-
65	Stone Lakes	Beaverhead	9 acres	-
66	Lake Abundance	Beaverhead	9 acres	-
67	Foolhen Lake	Beaverhead	9 acres	-
68	Peterson Lake	Beaverhead	8 acres	About 39 ft
69	Boatman Lake	Beaverhead	7 acres	About 2 ft
70	Scott Lake	Beaverhead	7 acres	-
71	Cherry Lake	Beaverhead	7 acres	About 24 ft
72	Albino Lake	Beaverhead	7 acres	-
73	Shambow Pond	Beaverhead	7 acres	-
74	Granite Lake	Beaverhead	7 acres	About 14 ft
75	Hidden Lake	Beaverhead	7 acres	-
76	Lion Lake	Beaverhead	7 acres	About 40 ft
77	Harkness Lakes	Beaverhead	6 acres	About 22 ft
78	Bobcat Lakes	Beaverhead	6 acres	-
79	Slag-a-melt Lakes	Beaverhead	6 acres	-
80	Hall Lake	Beaverhead	6 acres	-
81	Dollar Lake	Beaverhead	6 acres	About 15 ft
82	Tent Lake	Beaverhead	5 acres	About 6 ft
83	Ovis Lake	Beaverhead	5 acres	-
84	Skinner Lake	Beaverhead	5 acres	About 5 ft
85	Mud Lake	Beaverhead	5 acres	About 4 ft
86	Sawed Cabin Lake	Beaverhead	5 acres	About 5 ft
87	Trapper Lake	Beaverhead	5 acres	About 7 ft
88	Deadman Lake	Beaverhead	4 acres	About 18 ft
89	Harrison Lake	Beaverhead	4 acres	-
90	Bobs Lake	Beaverhead	4 acres	-
91	Morgan Jones Lake	Beaverhead	4 acres	-
92	Highup Lake	Beaverhead	4 acres	About 10 ft
93	Schwinegar Lake	Beaverhead	4 acres	-
94	Continental Lake	Beaverhead	4 acres	About 5 ft
95	Johanna Lake	Beaverhead	4 acres	-
96	Poison Lakes	Beaverhead	4 acres	-
97	Long Branch Lake	Beaverhead	4 acres	-
98	Vera Lake	Beaverhead	4 acres	-
99	Harkness Lakes	Beaverhead	3 acres	About 6 ft
100	Pioneer Lake	Beaverhead	3 acres	About 20 ft
101	Dad Creek Lake	Beaverhead	3 acres	-
102	Crystal Lake	Beaverhead	3 acres	About 30 ft
103	Lily Lake	Beaverhead	2 acres	-
104	Dingley Lakes	Beaverhead	1 acres	-
105	Selway Lake	Beaverhead	1 acres	About 16 ft
106	Stewart Lake	Beaverhead	1 acres	-

Sources: Montana Fish, Wildlife & Parks lake data; USGS. Verified October 30, 2026.