Hanlan Lake
49.8396° N, 83.8005° W
Depth contours from the 1967 government survey. Not for navigation.
Download the depth map (SVG)Hanlan Lake, Ontario. 49.8396° N, 83.8005° W
Maximum depth 12.2 m (1967 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/hanlan-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.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Hanlan Lake is 12.2 m deep at its deepest point, shallower than 65% of the 2,688 surveyed lakes in Ontario. It covers 5.13 km² and lies 10 km west of Lac-Ste-Thérèse.
- Maximum depth
- 12.2 msurveyed 1967
- shallower than 65% of the 2,688 surveyed lakes in Ontario
- Area
- 5.13 km²
- larger than 91% of the 18,731 lakes in Ontario
- Shoreline
- 19.9 km
- longer than 87% of the 18,731 lakes in Ontario
- Elevation
- 232 m
Today on the water
2.2 °C
Observed at Hearst, 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.
| 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 | W 10 | W 10 | NW 20 | W 20 | W 20 | W 10 | var. 5 | var. 5 |
| Gusts km/h | 40 | |||||||
| Waves (est.) m | 0.1 | 0.1 | 0.2 | 0.2 | ||||
| Temp. °C | 1 | 1 | 3 | 6 | 8 | 7 | 4 | 2 |
| Precip. % | 20 | 20 | 20 | 0 | 0 | 0 | 0 | 0 |
Tonight: Cloudy. 60 percent chance of showers this evening. Wind northwest 20 km/h gusting to 40 becoming light early this evening. Low plus 1.
Weather: Hearst (local forecast), as of 3:03 a.m. EDT
Sun and moon
- Civil dawn
- 7:15 a.m.
- Sunrise
- 7:47 a.m.
- Sunset
- 6:56 p.m.
- Civil dusk
- 7:28 p.m.
- Moonrise
- 6:38 a.m.
- Moonset
- 6:14 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
46% of Hanlan Lake is shallower than 3 m, and 33% is deeper than 5 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 1967 records a maximum depth of 12.2 m, drawn from 16 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.
Water
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.