Lake Trout Lakes in Ontario

Government fish surveys have recorded lake trout in 419 Ontario lakes, 18% of the 2,365 lakes in this atlas with sport-fish records. Another 172 lakes are known only from stocking records.

Lakes: 591
Recorded since 2010: 325
Stocked: 206
Median size: 3.09 km²
Median max depth: 36 m
Latest record: 2021

Where lake trout is most consistently recorded

Ranked by consistency: the lower bound of a 95% confidence interval on the share of the lake’s surveys that found it. A lake where 18 of 20 surveys found it ranks above one where 1 of 1 did. Lakes known only from stocking come last.

#	Lake	Surveys	Last record	Stocked	Max depth m	Area km²
1	Megisan LakeSudbury	26 of 27	2008		18	6.15
2	Walotka LakeThunder Bay	32 of 34	2013		22	0.94
3	Robertson LakeAlgoma	26 of 30	2015		21	1.39
4	Caswell LakeGreater Sudbury / Grand Sudbury	9 of 9	2011			0.41
5	Cry LakeThunder Bay	41 of 50	2013		46	2.45
6	Ranger LakeAlgoma	49 of 62	2013		73	23.2
7	Porcus LakeKenora	25 of 30	2010		49	5.26
8	Nelson LakeGreater Sudbury / Grand Sudbury	7 of 7			49	3.09
9	Victoria LakeKenora	46 of 60	2013		27	9.29
10	Saymo LakeAlgoma	46 of 61	2014		52	8.54
11	Kirkpatrick LakeAlgoma	36 of 47	2014		67	11.2
12	Mold LakeKenora	12 of 14	2009			0.47
13	Greenwater LakeThunder Bay	43 of 60	2013		54	34.3
14	Ten Mile LakeAlgoma	25 of 33	2011		116	10.4
15	Cecil LakeKenora	27 of 36	2009			15.6
16	Daniels LakeKenora	29 of 39	2010		73	16.4
17	Gong LakeAlgoma	32 of 44	2013		21	4.11
18	Wabun LakeRenfrew	5 of 5	2011	2025	24	0.45
19	Louisa LakeRainy River	24 of 33	2010		73	7.25
20	Crystal LakeLennox and Addington	10 of 12	2010		34	0.55
21	Castle LakeThunder Bay	22 of 31	2013		36	6.11
22	Emerald LakeSudbury	39 of 59	2014		37	5.84
23	Waweig LakeThunder Bay	37 of 56	2013		43	11.6
24	Opeongo LakeNipissing	7 of 8				59.4
25	Confusion LakeKenora	13 of 17	2009			8
26	Bell LakeThunder Bay	26 of 38	2009			42
27	Achigan LakeAlgoma	27 of 40	2013		43	2.36
28	Penelope LakeAlgoma	16 of 22	2010		37	1.76
29	Long LakePeterborough	4 of 4	2015		20	1
30	Big Hawk LakeHaliburton	4 of 4	2014		52	3.95
31	Clear LakeHaliburton	4 of 4	2014			0.91
32	Papineau LakeHastings	4 of 4			61	8.41
33	Larder LakeTimiskaming	47 of 78	2014		34	37.4
34	Avery LakeSudbury	13 of 18	2010		15	1.57
35	Tom LakeKenora	13 of 18	2009		34	0.58
36	Lower Fletcher LakeHaliburton	8 of 10	2012	2025		0.62
37	Titmarsh LakeThunder Bay	31 of 50	2013		49	9.72
38	Cliff LakeThunder Bay	18 of 27	2013		12	0.41
39	Point LakeAlgoma	18 of 27	2013		27	0.78
40	McCaulay LakeRainy River	16 of 24	2013		37	4.62
41	Matinenda LakeAlgoma	37 of 63	2014		85	41.5
42	Grimshaw LakeRainy River	10 of 14	2010		24	0.73
43	Burchell LakeThunder Bay	36 of 63	2013		73	10.5
44	McEwen LakeRainy River	16 of 25	2010		35	6.65
45	Ellen LakeThunder Bay	11 of 16	2012		55	0.99
46	Abbess LakeRainy River	11 of 16	2010		34	1.42
47	Shirley LakeNipissing	3 of 3	2019			5.11
48	Miskwabi LakeHaliburton	3 of 3	1899		43	3.45
49	Elboga LakeSudbury	3 of 3				0.27
50	Catfish LakeNipissing	3 of 3				6.09

Top 50 of 591 lakes. Download the full list (CSV). Source: Ontario’s Aquatic Resource Area survey summaries and fish stocking records (Ministry of Natural Resources, OGL-Ontario). Data as of October 9, 2026. A record means a survey caught or observed the species, not that it is abundant today.

Lake Trout Lakes in Ontario

Where it is found

Where lake trout is most consistently recorded

Other fish in Ontario