What lakes are in the Lake Superior Basin (MN+WI)?

680 monitored lakes drain through the Lake Superior Basin (MN+WI), including Clearwater Lake, Clearwater Lake, Latoka Lake, and others. The watershed spans Minnesota and Wisconsin.

What is the cleanest lake in the Lake Superior Basin (MN+WI)?

Clearwater Lake in Cook County is the highest-rated lake in the Lake Superior Basin (MN+WI) with a Grade A.

What is a HUC8 watershed?

HUC8 (Hydrologic Unit Code, 8-digit) is the USGS classification for "subbasins" — the level at which major named river systems are usually identified. The Lake Superior Basin (MN+WI) corresponds to HUC8 04010102.

Lake Superior Basin (MN+WI)

Minnesota and Wisconsin · 680 monitored lakes · 249 grade A · 167 grade B · HUC8 04010102

Lakes draining north into Lake Superior across the Arrowhead region of Minnesota and northern Wisconsin — including the Boundary Waters Canoe Area Wilderness lakes.

Counties in this watershed

Cook, Lake, St. Louis, Carlton, Douglas, Bayfield, Ashland, Iron

Monitored Lakes (680)

#	Lake	County	Grade	Clarity	Area	Depth
1	Clearwater Lake	Cook	A	30 ft	461.73 acres	65 ft
2	Clearwater Lake	Lake	A	18 ft	640.18 acres	46 ft
3	Latoka Lake	Douglas	A	19 ft	766.63 acres	108 ft
4	Birch Lake	Cook	A	18 ft	236.31 acres	69 ft
5	Round Lake	Cook	A	16.5 ft	154.48 acres	45 ft
6	Pike Lake	Cook	A	17.8 ft	814.43 acres	45 ft
7	Pike Lake	St. Louis	A	18 ft	488.26 acres	60 ft
8	Sunshine Lake	St. Louis	A	20 ft	79.45 acres	37 ft
9	Trout Lake	Cook	A	19 ft	258.91 acres	77 ft
10	Chippewa Lake	Douglas	A	15.1 ft	1.2K acres	95 ft
11	Eddy Lake	Lake	A	16.5 ft	121.53 acres	95 ft
12	Cowdry Lake	Douglas	A	17 ft	242.54 acres	52 ft
13	Bear Lake	Lake	A	17.4 ft	44.37 acres	31 ft
14	Ida Lake	Douglas	A	16.5 ft	4.4K acres	106 ft
15	Jenny Lake	Lake	A	15.5 ft	102.31 acres	93 ft
16	Tofte Lake	Lake	A	18.5 ft	133.78 acres	73 ft
17	Eagles Nest Lake	St. Louis	A	15.5 ft	1.0K acres	49 ft
18	Mukooda Lake	St. Louis	A	16.6 ft	773.76 acres	78 ft
19	Gull Lake	Cook	A	16.4 ft	-	-
20	Miltona Lake	Douglas	A	18.8 ft	5.7K acres	105 ft
21	Silver Lake	St. Louis	A	19.3 ft	45.63 acres	29 ft
22	Mina Lake	Douglas	A	16 ft	411.41 acres	123 ft
23	Knife Lake	Lake	A	20 ft	104.9 acres	-
24	Majestic Lake	St. Louis	A	15.7 ft	52.28 acres	51 ft
25	Schultz Lake	St. Louis	A	15.5 ft	210.34 acres	48 ft
26	Hanson Lake	Lake	A	16 ft	289.43 acres	100 ft
27	Smith Lake	St. Louis	A	15 ft	193.22 acres	51 ft
28	Hungry Jack Lake	Cook	A	18 ft	474.28 acres	71 ft
29	Pine Lake	Cook	A	18 ft	2.1K acres	113 ft
30	Little Armstrong Lake	St. Louis	A	15.5 ft	69.68 acres	26 ft
31	Little Long Lake	St. Louis	A	21 ft	322.24 acres	45 ft
32	Rose Lake	St. Louis	A	-	58.9 acres	31 ft
33	Leo Lake	Cook	A	15 ft	102.4 acres	28 ft
34	Duncan Lake	Cook	A	22 ft	476.95 acres	130 ft
35	Boot Lake	Lake	A	16.5 ft	197.07 acres	83 ft
36	Lone Lake	Cook	A	21 ft	-	-
37	Burntside Lake	St. Louis	A	16 ft	7.3K acres	126 ft
38	Ahsub Lake	Lake	A	18 ft	60.33 acres	78 ft
39	Whiskey Lake	Douglas	A	18.8 ft	159.52 acres	46 ft
40	Mayhew Lake	Cook	A	20.6 ft	220.9 acres	84 ft
41	Moon Lake	Douglas	A	20 ft	139.09 acres	38 ft
42	Armstrong Lake	St. Louis	A	16.2 ft	382.34 acres	34 ft
43	Loon Lake	Cook	A	18 ft	1.1K acres	202 ft
44	Loon Lake	St. Louis	A	21.7 ft	-	-
45	Dumbbell Lake	Lake	A	15.8 ft	406.11 acres	40 ft
46	Lost Lake	St. Louis	A	23 ft	124.07 acres	44 ft
47	Missionary Lake	Lake	A	17 ft	98.61 acres	71 ft
48	St James Pit Lake	St. Louis	A	47.6 ft	124.18 acres	381 ft
49	Stony Lake	Douglas	A	15.7 ft	86.76 acres	58 ft
50	Kekekabic Lake	Lake	A	19.3 ft	54.91 acres	130 ft
51	Majestic Lake	St. Louis	A	17.1 ft	52.28 acres	51 ft
52	St. Marys Lake	St. Louis	A	16.8 ft	234.16 acres	44 ft
53	Deep Lake	St. Louis	A	17.2 ft	73.13 acres	50 ft
54	Dix Lake	Lake	A	15.7 ft	-	-
55	Sabin Lake	St. Louis	A	35 ft	278.87 acres	52 ft
56	Gunflint Lake	Cook	A	20 ft	4.0K acres	200 ft
57	St. Mary'S Lake	St. Louis	A	15 ft	234.16 acres	44 ft
58	Lottie Lake	Douglas	A	16.1 ft	46.37 acres	31 ft
59	Ely Lake	St. Louis	A	16 ft	723.09 acres	70 ft
60	Joe Martin Lake	St. Louis	A	36.7 ft	67.8 acres	77 ft
61	Kemo Lake	Cook	A	17 ft	189.08 acres	65 ft
62	Flour Lake	Cook	A	18.5 ft	330.13 acres	75 ft
63	Moses Lake	Douglas	A	16.2 ft	823.82 acres	32 ft
64	Carlos Lake	Douglas	A	17.2 ft	2.6K acres	163 ft
65	Ahmakose Lake	Lake	A	18.5 ft	42.71 acres	68 ft
66	Vera Lake	Lake	A	19 ft	250.39 acres	55 ft
67	Cherry Lake	Lake	A	22 ft	18.65 acres	30 ft
68	Ester Lake	Lake	A	18.5 ft	373.68 acres	110 ft
69	Cruiser Lake	St. Louis	A	25.4 ft	117.53 acres	91 ft
70	Bearskin Lake	Cook	A	21.3 ft	509.22 acres	78 ft
71	Kek Lake	Lake	A	19.5 ft	54.91 acres	130 ft
72	Topaz Lake	Lake	A	17.5 ft	409.8 acres	110 ft
73	Peter Lake	Cook	A	22.5 ft	281.98 acres	120 ft
74	Kekekabic Pond 3	Lake	A	18 ft	27.3 acres	-
75	Gijikiki Lake	Lake	A	19.3 ft	113.05 acres	70 ft
76	Canoe Lake	Cook	A	20.5 ft	96.41 acres	40 ft
77	Amoeber Lake	Lake	A	18 ft	409.8 acres	110 ft
78	Stoney Lake	Douglas	A	19 ft	86.76 acres	58 ft
79	Indiana Lake	Lake	A	15 ft	143.04 acres	31 ft
80	Su18 Lake	Cook	A	38.7 ft	-	-
81	Mcfarland Lake	Cook	A	17 ft	39.53 acres	-
82	Chester Lake	Cook	A	39 ft	51.97 acres	-
83	Whitewater Lake	St. Louis	A	15.4 ft	1.2K acres	73 ft
84	Su19 Lake	Cook	A	37.7 ft	-	-
85	Divide Lake	Lake	A	33.2 ft	61.11 acres	-
86	North Union Lake	Douglas	A	20.3 ft	118.41 acres	42 ft
87	Parent Lake	Lake	A	23 ft	450.97 acres	50 ft
88	Aerie Lake	St. Louis	A	37.7 ft	146.35 acres	-
89	Meander Lake	St. Louis	A	27.9 ft	98.71 acres	-
90	16-0023-00 Lake	Cook	A	17 ft	77.5 acres	35 ft
91	Dunnigan Lake	Lake	A	33.2 ft	81.13 acres	-
92	Little Gunflint Lake	Cook	A	16.2 ft	4.0K acres	200 ft
93	Rog Lake	Cook	A	26.2 ft	53.73 acres	40 ft
94	16-0524-00 Lake	Cook	A	15 ft	837.01 acres	142 ft
95	Superior Lake	Cook	A	15.1 ft	-	-
96	Superior Lake	St. Louis	A	-	-	-
97	38-0502-00 Lake	Lake	A	21 ft	153.33 acres	59 ft
98	Iron Chief Complex Lake	St. Louis	A	24.5 ft	207.44 acres	262.1 ft
99	West Pike Lake	Cook	A	19 ft	788.2 acres	120 ft
100	Little Sandy Lake	St. Louis	A	-	-	-

Showing top 100 of 680 lakes by water quality grade.

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