BorealBoundFrançais
Map of Ash Lake with depth contours

Ash Lake

48.2583° N, 83.9775° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Ash Lake, Ontario. 48.2583° N, 83.9775° W

Maximum depth 18.3 m. Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/ash-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.
  • 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.
  • Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.

Ash Lake is 18.3 m deep at its deepest point, deeper than 54% of the 2,688 surveyed lakes in Ontario. It covers 3.66 km² and lies 8.3 km east of Missanabie.

Maximum depth
18.3 m
deeper than 54% of the 2,688 surveyed lakes in Ontario
Area
3.66 km²
larger than 89% of the 18,731 lakes in Ontario
Shoreline
33 km
longer than 93% of the 18,731 lakes in Ontario
Elevation
348 m

Sun and moon today

Civil dawn
7:15 a.m.
Sunrise
7:46 a.m.
Sunset
6:58 p.m.
Civil dusk
7:29 p.m.
Moonrise
6:38 a.m.
Moonset
6:17 p.m.
Moon
Waning crescent, 1% lit

Depth

66% of Ash Lake is shallower than 3 m, and 4% 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 records a maximum depth of 18.3 m, drawn from 32 depth contours.

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 Depths are from government surveys and may be outdated.

Getting on the water

3 listed boat launches. marks launches on the map.