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

2090 monitored lakes drain through the Lake Superior Basin (MN+WI), including Lobster 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)?

Lobster Lake in Douglas County has the most favourable nutrient and algae readings in the Lake Superior Basin (MN+WI), with about 13 ft of clarity.

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), Lakes & Water Quality

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

Reviewed by LakeQuality Editorial Team · Updated Aug 26, 2026

Counties in this watershed

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

Monitored Lakes (2090)

#	Lake	County	Clarity	Area	Depth
1	Lobster Lake	Douglas	13 ft	1,334 acres	65 ft
2	Clearwater Lake	Cook	29 ft	462 acres	65 ft
3	Latoka Lake	Douglas	19 ft	767 acres	108 ft
4	Big Lake	Carlton	10 ft	526 acres	25 ft
5	Big Lake	St. Louis	8.2 ft	1,904 acres	22 ft
6	Birch Lake	Cook	18 ft	236 acres	69 ft
7	Round Lake	Cook	16.5 ft	154 acres	45 ft
8	Pike Lake	Cook	17.4 ft	814 acres	45 ft
9	Farm Lake	Lake	5.5 ft	1,292 acres	56 ft
10	Maple Lake	Douglas	14.1 ft	831 acres	78 ft
11	West Twin Lake	Cook	9.8 ft	134 acres	37 ft
12	Trout Lake	Cook	18.4 ft	259 acres	77 ft
13	South Sturgeon Lake	St. Louis	2.5 ft	204 acres	43 ft
14	Chippewa Lake	Douglas	14.8 ft	1,186 acres	95 ft
15	Cowdry Lake	Douglas	17.1 ft	243 acres	52 ft
16	Garden Lake	Lake	5 ft	653 acres	55 ft
17	Bear Lake	Lake	17.4 ft	44 acres	31 ft
18	Vermont Lake	Douglas	14.1 ft	342 acres	59 ft
19	Darling Lake	Douglas	14 ft	1,050 acres	62 ft
20	Colby Lake	St. Louis	3 ft	518 acres	30 ft
21	Ida Lake	Douglas	16.4 ft	4,445 acres	106 ft
22	Island Lake	St. Louis	14.5 ft	222 acres	65 ft
23	Crooked Lake	Douglas	14 ft	284 acres	35 ft
24	Crooked Lake	Lake	3 ft	60 acres	4 ft
25	Portage Lake	Cook	8.5 ft	128 acres	55 ft
26	White Iron Lake	Lake	4.5 ft	3,237 acres	47 ft
27	Gull Lake	Cook	15.5 ft	-	-
28	Miltona Lake	Douglas	18.7 ft	5,731 acres	105 ft
29	Silver Lake	St. Louis	19.3 ft	46 acres	29 ft
30	Caribou Lake	Cook	6.9 ft	68 acres	6 ft
31	Mary Lake	Douglas	10.5 ft	2,450 acres	40 ft
32	Devil Track Lake	Cook	7 ft	1,876 acres	50 ft
33	Pleasant Lake	St. Louis	10 ft	335 acres	33 ft
34	Poplar Lake	Cook	10.2 ft	23 acres	30 ft
35	Deer Yard Lake	Cook	7.2 ft	343 acres	20 ft
36	East Twin Lake	St. Louis	2.8 ft	-	-
37	Elbow Lake	Cook	3.7 ft	408 acres	9 ft
38	Fall Lake	Lake	5.5 ft	2,258 acres	32 ft
39	Perch Lake	St. Louis	13.5 ft	344 acres	30 ft
40	Le Homme Dieu Lake	Douglas	13.1 ft	1,801 acres	85 ft
41	Side Lake	St. Louis	11.5 ft	368 acres	32 ft
42	Hungry Jack Lake	Cook	18 ft	474 acres	71 ft
43	Pine Lake	St. Louis	7.5 ft	450 acres	14 ft
44	Tom Lake	Cook	9 ft	404 acres	35 ft
45	Geneva Lake	Douglas	14.1 ft	640 acres	63 ft
46	Cedar Island Lake	St. Louis	3.8 ft	-	-
47	Tait Lake	Cook	7 ft	355 acres	15 ft
48	Sturgeon Lake	St. Louis	13.8 ft	1,585 acres	79.8 ft
49	Rachel Lake	Douglas	7.9 ft	448 acres	65 ft
50	Rose Lake	St. Louis	-	59 acres	31 ft
51	Burntside Lake	St. Louis	16 ft	7,314 acres	126 ft
52	Andrew Lake	Douglas	13.9 ft	923 acres	83 ft
53	Sea Gull Lake	Cook	14.3 ft	168 acres	40 ft
54	Mayhew Lake	Cook	20.6 ft	221 acres	84 ft
55	Moon Lake	Douglas	21 ft	139 acres	38 ft
56	Loon Lake	Cook	17.4 ft	1,095 acres	202 ft
57	Dodo Lake	St. Louis	12.8 ft	92 acres	53 ft
58	Dumbbell Lake	Lake	14.8 ft	406 acres	40 ft
59	St. Marys Lake	St. Louis	13.1 ft	234 acres	44 ft
60	Stewart Lake	Lake	10 ft	238 acres	20 ft
61	Sabin Lake	St. Louis	2.1 ft	279 acres	52 ft
62	Bear Island Lake	St. Louis	7 ft	2,362 acres	62 ft
63	Gunflint Lake	Cook	16.5 ft	4,009 acres	200 ft
64	Nichols Lake	St. Louis	5.1 ft	419 acres	31 ft
65	Lottie Lake	Douglas	16.1 ft	46 acres	31 ft
66	Third Lake	Carlton	8.5 ft	-	-
67	Ely Lake	St. Louis	17.1 ft	723 acres	70 ft
68	Flour Lake	Cook	18.2 ft	330 acres	75 ft
69	Carlos Lake	Douglas	18 ft	2,605 acres	163 ft
70	Murphy Lake	St. Louis	6.4 ft	354 acres	24 ft
71	Wynne Lake	St. Louis	7.3 ft	279 acres	52 ft
72	Pat Martin Lake	Carlton	6.6 ft	-	-
73	Two Island Lake	Cook	9 ft	754 acres	27 ft
74	Brophy Lake	Douglas	15.4 ft	297 acres	44 ft
75	Burgen Lake	Douglas	12 ft	174 acres	43 ft
76	Park Lake	Carlton	7 ft	381 acres	16 ft
77	Cadotte Lake	St. Louis	10.2 ft	294 acres	18 ft
78	Bearskin Lake	Cook	21 ft	509 acres	78 ft
79	South Oscar Lake	Douglas	16.7 ft	-	-
80	Isabella Lake	Lake	4.4 ft	1,257 acres	19 ft
81	Stoney Lake	Douglas	19 ft	87 acres	58 ft
82	Turtle Lake Deep	Cook	-	-	-
83	Mcfarland Lake	Cook	17 ft	40 acres	8 ft
84	Fenske Lake	St. Louis	11.5 ft	108 acres	43 ft
85	Whitewater Lake	St. Louis	14 ft	1,212 acres	73 ft
86	Ward Lake	Cook	5.6 ft	39 acres	13 ft
87	Bear Head Lake	St. Louis	11 ft	662 acres	46 ft
88	Louise Lake	Douglas	14.5 ft	214 acres	33 ft
89	Clara Lake	Cook	7.6 ft	388 acres	15 ft
90	North Union Lake	Douglas	20.3 ft	118 acres	42 ft
91	Saganaga Lake	Cook	13 ft	-	-
92	Greenwood Lake	Cook	15.1 ft	2,043 acres	112 ft
93	Dunnigan Lake	Lake	11.4 ft	81 acres	14 ft
94	Taylor Lake Deep	Cook	10.6 ft	-	-
95	Tetagouche Lake	Lake	7.2 ft	67 acres	20 ft
96	Trout Lake Deep	Cook	10.7 ft	-	-
97	Bean Lake	Lake	9.8 ft	31 acres	26 ft
98	Teal Lake Deep	Cook	4.1 ft	-	-
99	Little Lake Deep	Cook	4.9 ft	-	-
100	North Lake Deep	Cook	-	-	-