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Map of Cumming's Lake with depth contours

Cumming's Lake

46.472° N, 83.3566° W

Depth contours from the 1972 government survey. Not for navigation.

Download the depth map (SVG)

Cumming's Lake, Ontario. 46.472° N, 83.3566° W

Maximum depth 36.6 m (1972 survey). Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/cumming-s-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.
  • 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).

Cumming's Lake is 36.6 m deep at its deepest point, deeper than 85% of the 2,688 surveyed lakes in Ontario. It covers 5.21 km² and lies 5.8 km west of Kynoch.

Government surveys have recorded 6 fish species here, including rock bass and smallmouth bass.

Maximum depth
36.6 msurveyed 1972
deeper than 85% of the 2,688 surveyed lakes in Ontario
Area
5.21 km²
larger than 92% of the 18,731 lakes in Ontario
Shoreline
14.7 km
longer than 83% of the 18,731 lakes in Ontario
Water clarity
5.2 mSecchi depth, 2017
clearer than 82% of the 1,251 monitored lakes in Ontario
Fish species
6
more than 57% of the 2,454 surveyed lakes in Ontario
Elevation
276 m

Today on the water

11.1 °C

Mainly SunnyWind WSW 15 km/h

Observed at Blind River, as of 9:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 10 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Time10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.4 a.m.7 a.m.
Wind km/hNW 20NW 20NW 20var. 5var. 5E 10E 10E 10
Gusts km/h404040
Waves (est.) m0.20.20.20.1
Temp. °C81113139658
Precip. %2020000000

Today: A mix of sun and cloud. 30 percent chance of showers early this morning. Clearing this afternoon. Wind becoming northwest 20 km/h gusting to 40 this morning. High 14. UV index 4 or moderate.

Weather: Blind River (local forecast), as of 9:02 a.m. EDT

Sun and moon

Civil dawn
7:12 a.m.
Sunrise
7:42 a.m.
Sunset
6:57 p.m.
Civil dusk
7:27 p.m.
Moonrise
6:35 a.m.
Moonset
6:16 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

42% of Cumming's Lake is deeper than 20 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 1972 records a maximum depth of 36.6 m, drawn from 16 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 1 government surveys (2015–2015) that recorded them.

  • Rock Bass1 of 1
  • Smallmouth Bass1 of 1
Forage fish and other species (4)
  • Bluntnose Minnow 1
  • Brassy Minnow 1
  • Logperch 1
  • Longnose Dace 1

Numbers are the surveys that recorded each species.

Fishing regulations: Fisheries Management Zone 10. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 2 years between 2012 and 2017; the latest annual mean is 5.2 m.

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

Getting on the water

3 listed boat launches. marks launches on the map.

North shore

South shore

Northwest shore