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Map of Rollo Lake with depth contours

Rollo Lake

47.8829° N, 82.6487° W

Depth contours from the 1978 government survey. Not for navigation.

Download the depth map (SVG)

Rollo Lake, Ontario. 47.8829° N, 82.6487° W

Maximum depth 53 m (1978 survey). Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/rollo-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.
  • Fisheries Management Zones, Ontario Ministry of Natural Resources. 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.
  • City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
  • Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.

Rollo Lake is 53 m deep at its deepest point, deeper than 94% of the 2,688 surveyed lakes in Ontario. It covers 8.1 km² and lies 29 km north of Sultan.

Government surveys have recorded 14 fish species here, including burbot, walleye and lake trout.

Maximum depth
53 msurveyed 1978
deeper than 94% of the 2,688 surveyed lakes in Ontario
Area
8.1 km²
larger than 94% of the 18,731 lakes in Ontario
Shoreline
26 km
longer than 91% of the 18,731 lakes in Ontario
Fish species
14
more than 86% of the 2,454 surveyed lakes in Ontario
Elevation
374 m

Today on the water

5.1 °C

ClearWind SSW 5 km/h

Observed at Chapleau, as of 3:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 8 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Time4 a.m.7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.
Wind km/hW 10W 10NW 20NW 20W 20W 10var. 5SE 10
Waves (est.) m0.10.10.20.2
Temp. °C325911841
Precip. %303020200000

Tonight: Mainly cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50 becoming light late this evening. Low plus 2.

Weather: Chapleau (local forecast), as of 3:00 a.m. EDT

Sun and moon

Civil dawn
7:10 a.m.
Sunrise
7:41 a.m.
Sunset
6:53 p.m.
Civil dusk
7:24 p.m.
Moonrise
6:32 a.m.
Moonset
6:12 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

20% of Rollo Lake is deeper than 30 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 1978 records a maximum depth of 53 m, drawn from 96 depth contours.

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

Fish

Sport fish by the share of the 58 government surveys (2009–2014) that recorded them.

  • Burbot25 of 58
  • Walleye19 of 58
  • Lake Trout13 of 58
  • Lake Whitefish11 of 58
  • Northern Pike11 of 58
  • Yellow Perch8 of 58
  • Cisco6 of 58
Forage fish and other species (7)

Forage fish

  • Trout-Perch 10
  • Lake Chub 8
  • Logperch 4
  • Ninespine Stickleback 4
  • Common Shiner 3
  • Spottail Shiner 2

Other

  • White Sucker 14

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 7 species from Rollo Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm4Do not eatMercury
Lake Whitefish45-50 cm128PCB
Northern Pike55-60 cm4Do not eatMercury
Smallmouth Bass30-35 cm168Mercury
Walleye40-45 cm4Do not eatMercury
Burbot (Ling)50-55 cm4Do not eatMercury
White Sucker40-45 cm1612Precautionary

* 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 8. Check seasons and limits before you fish.