Isinglass Lake
49.3412° N, 93.6908° W
Depth contours from the 1982 government survey. Not for navigation.
Download the depth map (SVG)Isinglass Lake, Ontario. 49.3412° N, 93.6908° W
Maximum depth 48 m (1982 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/isinglass-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.
- 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).
Isinglass Lake is 48 m deep at its deepest point, deeper than 93% of the 2,688 surveyed lakes in Ontario. It covers 7.08 km² and lies 18 km east of Whitefish Bay.
- Maximum depth
- 48 msurveyed 1982
- deeper than 93% of the 2,688 surveyed lakes in Ontario
- Area
- 7.08 km²
- larger than 94% of the 18,731 lakes in Ontario
- Shoreline
- 19.8 km
- longer than 87% of the 18,731 lakes in Ontario
- Elevation
- 349 m
Today on the water
6.6 °C
Observed at Sioux Narrows, as of 3:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 1 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.
| Time | 4 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/h | SE 10 | SE 10 | SE 10 | SE 20 | SE 20 | SE 20 | SE 20 | SE 15 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | ||||
| Temp. °C | 4 | 5 | 9 | 12 | 14 | 13 | 14 | 13 |
| Precip. % | 20 | 20 | 20 | 30 | 30 | 30 | 10 | 10 |
Tonight: A few clouds. Wind northwest 20 km/h becoming light this evening. Low plus 4.
Weather: Sioux Narrows (local forecast), as of 3:02 a.m. CDT
Sun and moon
- Civil dawn
- 6:54 a.m.
- Sunrise
- 7:26 a.m.
- Sunset
- 6:36 p.m.
- Civil dusk
- 7:08 p.m.
- Moonrise
- 6:20 a.m.
- Moonset
- 5:55 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
51% of Isinglass 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 1982 records a maximum depth of 48 m, drawn from 35 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
Not for navigation. Depths are from government surveys and may be outdated.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.