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Map of Sunbow Lake with depth contours

Sunbow Lake

48.2243° N, 90.5234° W

Depth contours from the 1966 government survey. Not for navigation.

Download the depth map (SVG)

Sunbow Lake, Ontario. 48.2243° N, 90.5234° W

Maximum depth 21.3 m (1966 survey). Scale bar on the map.

Not for navigation. Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/sunbow-lake/, compiled October 9, 2026

  • Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
  • HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
  • Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
  • Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Fishing access points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
  • Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.

Sunbow Lake is 21.3 m deep at its deepest point, deeper than 62% of the 2,688 surveyed lakes in Ontario. It covers 5.61 km² and lies 25 km east of Saganaga Lake.

Government surveys have recorded 7 fish species here, including smallmouth bass, northern pike and yellow perch.

Maximum depth
21.3 msurveyed 1966
deeper than 62% of the 2,688 surveyed lakes in Ontario
Area
5.61 km²
larger than 92% of the 18,731 lakes in Ontario
Shoreline
29.5 km
longer than 92% of the 18,731 lakes in Ontario
Water clarity
2.3 mSecchi depth, 2019
less clear than 81% of the 1,251 monitored lakes in Ontario
Fish species
7
more than 61% of the 2,454 surveyed lakes in Ontario
Elevation
471 m

Sun and moon today

Civil dawn
7:41 a.m.
Sunrise
8:13 a.m.
Sunset
7:24 p.m.
Civil dusk
7:55 p.m.
Moonrise
7:06 a.m.
Moonset
6:43 p.m.
Moon
Waning crescent, 1% lit

Depth

14% of Sunbow Lake is deeper than 10 m.

How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).

The government depth survey from 1966 records a maximum depth of 21.3 m, drawn from 21 depth contours.

Not for navigation. Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 14 government surveys (2008–2008) that recorded them.

  • Smallmouth Bass11 of 14
  • Northern Pike10 of 14
  • Yellow Perch9 of 14
  • Walleye7 of 14
  • Burbot3 of 14
  • Lake Whitefish3 of 14
Other species (1)
  • White Sucker 13

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 3 species from Sunbow Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm124Mercury
Smallmouth Bass35-40 cm84Mercury
Walleye40-45 cm124Mercury

* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide

Fishing regulations: Fisheries Management Zone 6. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 3 years between 2017 and 2019; the latest annual mean is 2.3 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)

Getting on the water

1 listed boat launch; 1 with parking listed. marks launches on the map.