Brook Trout Lakes in Ontario

Government fish surveys have recorded brook trout in 186 Ontario lakes, 8% of the 2,365 lakes in this atlas with sport-fish records. Another 440 lakes are known only from stocking records.

Lakes: 626
Recorded since 2010: 121
Stocked: 451
Median size: 0.26 km²
Median max depth: 18 m
Latest record: 2913

Where it is found

Most of these lakes are in Algoma (212), Thunder Bay (83) and Sudbury (62).

In these lakes the sport fish most often recorded alongside it are lake trout (12%), yellow perch (9%), pumpkinseed (9%) and smallmouth bass (8%).

451 of these lakes have been stocked with it. Stocking by lake, latest season.

Seasons, limits and sanctuaries vary by zone: check the Ontario Fishing Regulations Summary before you fish.

Lake with a full profileOther lake

Where brook 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	Kwagama LakeAlgoma	38 of 39	2013		38	2.11
2	Little Dossier LakeAlgoma	22 of 22	2014		9	0.31
3	Bisect LakeThunder Bay	20 of 20	2013		12	0.32
4	Shack LakeTimiskaming	31 of 34	2013		12	1.65
5	Elbow LakeThunder Bay	12 of 12	2013		18	0.15
6	Okiniada LakeTimiskaming	25 of 28	2013		31	0.94
7	Vesi LakeAlgoma	10 of 10	2010			0.39
8	Buckaday LakeThunder Bay	14 of 15	2012		34	0.97
9	South Greenhill LakeAlgoma	17 of 19	2012		6	1.1
10	Queminico LakeAlgoma	23 of 27	2014		6	1.1
11	Rossmere LakeAlgoma	23 of 27	2013		6	1.2
12	Hanes LakeAlgoma	24 of 29	2013		18	1.38
13	North McCrea LakeThunder Bay	18 of 21	2012		15	2.1
14	South Branch LakeAlgoma	29 of 36	2013		12	2.05
15	Upper Hunters LakeThunder Bay	16 of 19	2013		7	0.25
16	Saddle LakeAlgoma	25 of 32	2013		15	1.13
17	Meach LakesHastings	6 of 6	2009		11	0.44
18	Partridge LakeThunder Bay	12 of 14	2012			0.29
19	Radium LakeAlgoma	12 of 14	2010			0.5
20	Gavor LakeAlgoma	27 of 36	2013		21	1.42
21	Jackfish LakeThunder Bay	10 of 12	2012			0.42
22	Carmen LakeTimiskaming	19 of 26	2014		11	0.21
23	Penassen LakesThunder Bay	15 of 20	2013		14	0.42
24	S LakeSudbury	7 of 8	2011		12	0.45
25	Galloway LakeAlgoma	13 of 17	2013			0.25
26	Lena LakeAlgoma	14 of 19	2012		37	0.96
27	Millichamp LakeHaliburton	4 of 4	2012	2025		0.1
28	Mamainse LakeAlgoma	25 of 38	2013		37	1.49
29	Upper Pancake LakeAlgoma	24 of 37	2013		15	1.05
30	Roger LakeHaliburton	6 of 7	2016			0.2
31	Wideman LakeThunder Bay	6 of 7	2012		12	0.29
32	Sill LakeAlgoma	12 of 17	2013		22	0.42
33	Peyton LakeParry Sound	9 of 12	2012		15	0.39
34	Gamitagama LakeAlgoma	25 of 42	2013		27	1.98
35	Griffin LakeAlgoma	25 of 42	2013		46	1.89
36	Godda LakeNipissing	3 of 3	2024			0.59
37	Animoosh LakeNipissing	3 of 3	2022			0.62
38	Lake La MuirNipissing	3 of 3				7.49
39	Dickson LakeNipissing	3 of 3				10.1
40	Catfish LakeNipissing	3 of 3				6.09
41	Alexander LakeAlgoma	8 of 11	2011		22	0.37
42	Old Woman LakeAlgoma	19 of 32	2013		43	2.88
43	Florence LakeSudbury	13 of 21	2014		37	10.2
44	Island LakeTimiskaming	15 of 25	2013		21	0.31
45	Weewullee LakeThunder Bay	16 of 27	2013		14	0.55
46	Callahan LakeAlgoma	7 of 10	2010		4	0.59
47	Sand LakeAlgoma	20 of 36	2013		28	3.6
48	Weckstrom LakeAlgoma	14 of 24	2014		18	0.3
49	Rome LakeSudbury	20 of 39	2013		12	2.33
50	Peninsula LakeMuskoka	6 of 9	2018		36	8.43

Top 50 of 626 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.

Brook Trout Lakes in Ontario

Where it is found

Where brook trout is most consistently recorded

Other fish in Ontario