Cook County Lake Quality

Minnesota — 144 lakes, average grade C (Fair)

All Lakes in Cook County

Rank	Lake	Grade	Clarity	Phosphorus
1	Clearwater Lake	A	9.91m	—
2	Clearwater Lake	A	8.8m	4 µg/L
3	Birch Lake	A	5.49m	8 µg/L
4	Round Lake	A	5.03m	8.5 µg/L
5	Pike Lake	A	5.41m	6 µg/L
6	Trout Lake	A	5.8m	9 µg/L
7	Hungry Jack Lake	A	5.49m	7 µg/L
8	Pine Lake	A	5.5m	—
9	Leo Lake	A	4.57m	—
10	Duncan Lake	A	6.71m	—
11	Lone Lake	A	6.4m	—
12	Mayhew Lake	A	6.28m	5 µg/L
13	Loon Lake	A	5.49m	5 µg/L
14	Gunflint Lake	A	6.1m	—
15	Kemo Lake	A	5.18m	—
16	Flour Lake	A	5.64m	7 µg/L
17	Bearskin Lake	A	6.48m	6 µg/L
18	Peter Lake	A	6.86m	—
19	Canoe Lake	A	6.25m	—
20	Gull Lake	A	5.01m	9 µg/L
21	Lake Superior Pt 8	A	8.65m	—
22	Lake Superior Pt 1	A	8.75m	4.5 µg/L
23	Su18 Lake	A	11.8m	—
24	Mcfarland Lake	A	5.18m	9 µg/L
25	Chester Lake	A	11.88m	—
26	Su19 Lake	A	11.5m	—
27	16-0023-00-100 Lake	A	5.18m	—
28	Lake Superior Pt2	A	8.47m	5.4 µg/L
29	Little Gunflint Lake	A	4.95m	7 µg/L
30	Rog Lake	A	8m	—
31	16-0524-00-100 Lake	A	4.57m	—
32	Superior Lake	A	4.59m	4 µg/L
33	Mountain Lake	A	5.79m	—
34	West Pike Lake	A	5.8m	—
35	Taylor Lake Deep	A	3.22m	13 µg/L
36	Trout Lake Deep	A	3.27m	9.7 µg/L
37	Poplar Lake	A	3.1m	10 µg/L
38	Sea Gull Lake	A	4.42m	7 µg/L
39	Two Island Lake	A	3.2m	14 µg/L
40	Saganaga Lake	A	3.83m	7 µg/L
41	Saganaga Lake	A	3.35m	6 µg/L
42	Greenwood Lake	A	4.5m	8 µg/L
43	Gogebic Lake	A	4.2m	5 µg/L
44	Alder Lake	A	4.2m	8 µg/L
45	Lake Superior Pt 9	B	2.4m	7.5 µg/L
46	Portage Lk Lake	B	2.6m	9.5 µg/L
47	Caribou Lake	B	2.13m	15 µg/L
48	Devil Track Lake	B	2.5m	12.5 µg/L
49	Esther Lake	B	3.05m	—
50	Red Rock Lake	B	3.86m	—
51	Deer Yard Lake	B	2.3m	15 µg/L
52	West Twin Lake	B	2.99m	9 µg/L
53	East Bearskin Lake	B	4.27m	—
54	Owl Lake	B	3.96m	—
55	Rose Lake	B	4.42m	—
56	Tom Lake	B	2.74m	8 µg/L
57	Tait Lake	B	2.17m	12.5 µg/L
58	Sea Gull Lake	B	4.47m	—
59	Brule Lake	B	3.52m	—
60	Jasper Lake	B	3.66m	—
61	Ball Club Lake	B	2.9m	16.5 µg/L
62	Alpine Lake	B	3.66m	—
63	Clara Lake	B	2.32m	15 µg/L
64	Saganaga Lake	B	3.05m	—
65	Mesaba Lake	B	3.05m	—
66	Alton Lake	B	4.11m	—
67	Beth Lake	B	3.38m	—
68	Taylor Lake Inlet_1	B	3.43m	—
69	Dick Lake	B	2.35m	10 µg/L
70	Tarry Lake	B	3.96m	—
71	Gabimichigami Lake	B	4.27m	—
72	East Pike Lake	B	3.73m	—
73	Lake Superior Pt 6	B	-99m	3.3 µg/L
74	Chevans Lake Deep	B	0.59m	17.5 µg/L
75	Lake Superior Pt5	B	-99m	5.7 µg/L
76	Lake Superior Pt7	B	-99m	3.4 µg/L
77	Lake Superior Pt4	B	-99m	5.1 µg/L
78	Little Lake Deep	B	-99m	14 µg/L
79	North Lake Deep	B	-99m	7.7 µg/L
80	Rice Lake	B	1.75m	17 µg/L
81	East Twin Lake	B	1.9m	17 µg/L
82	Elbow Lake	B	1.14m	19 µg/L
83	Ward Lake	B	1.7m	16.5 µg/L
84	Ella Lake	B	1.83m	4 µg/L
85	Missouri Lake	B	1.25m	11 µg/L
86	Turtle Lake Deep	C	-99m	22 µg/L
87	Teal Lake Deep	C	1m	15.5 µg/L
88	Horseshoe Lake	C	2.13m	—
89	Caribou Lake	C	2.44m	—
90	Devil Track Lake	C	2.13m	—
91	Lizz Lake	C	2.74m	—
92	Copper Lake	C	2.13m	—
93	Little Saganaga Lake	C	2.82m	—
94	Brule Lake	C	2.13m	—
95	Gust Lake	C	2.13m	—
96	Mora Lake	C	2.59m	—
97	Phoebe Lake	C	2.29m	—
98	Loon Lake Deep	C	-99m	23 µg/L
99	Karl Lake	C	2.44m	—
100	16-0569-00-100 Lake	C	2.9m	—
101	South Lake	C	2.44m	—
102	Dyers Lake	C	1.5m	21.5 µg/L
103	Cross Bay Lake	C	2.13m	—
104	Sawbill Lake	C	2.07m	—
105	Swamp Lake Deep	C	0.52m	27 µg/L
106	Rove Lake	C	2.74m	—
107	Watap Lake	C	2.74m	—
108	Long Island Lake	C	2.44m	—
109	Davis Lake	C	2.7m	—
110	Mt Maud Lake	C	1.03m	34 µg/L
111	Helmer_nelson Pond Deep	C	0.75m	60 µg/L
112	Cuffs Lake Deep	C	-99m	31 µg/L
113	Dutchman Lake Deep	D	0.69m	31 µg/L
114	Ada Lake	D	1.68m	—
115	Star Lake	D	1.5m	—
116	Homer Lake	D	1.83m	—
117	Onagon Lake	D	1.83m	—
118	Holly Lake	D	1.5m	—
119	Hub Lake	D	1.37m	—
120	Mt Maud Lake	D	1.03m	—
121	Cuffs Lake Landing	D	1.48m	—
122	Lower George Lake	D	1.07m	—
123	Center Lakedeep	D	0.42m	53 µg/L
124	Chevans Lake Beaver 2	F	0.59m	—
125	Chevans Lake Y	F	0.59m	—
126	Mt Maud Lake Mid	F	0.75m	—
127	Swede Lake Deep	F	-99m	—
128	Chevans Lake Inlet 1	F	0.59m	—
129	Mt Maud Lake Beaver Dam	F	0.89m	—
130	Lake Superior Pt 3	F	-99m	—
131	Dutchman Lake Inlet 2	F	0.6m	—
132	Center Lakelanding	F	-49.29m	—
133	Helmer_nelson Pond	F	0.75m	—
134	Dutchman Lakelanding	F	0.69m	—
135	Chaser Lake	F	0.3m	—
136	Helmer_nelson Pond	F	0.7m	—
137	Mt Maud Lake W_edge_	F	0.75m	—
138	Helmer_nelson Pond East End Beaver House	F	0.75m	—
139	Turtle Lake	F	-99m	—
140	Swede Lake	F	-99m	—
141	Swede Lake	F	-99m	—
142	Turtle Lake East End	F	-99m	—
143	Little Lake	F	-99m	—
144	Little Lake Landing	F	-99m	—