Lac Major
46.8374° N, 75.5037° W
Depth contours from the 2014 government survey. Not for navigation.
Download the depth map (SVG)Lac Major, Quebec. 46.8374° N, 75.5037° W
Maximum depth 44.5 m (2014 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-major/, 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.
- Géobase des bathymétries de lac du Québec (GBLQ), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
- États trophiques des lacs (RSVL), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
- 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).
Lac Major is 44.5 m deep at its deepest point, deeper than 92% of the 1,506 surveyed lakes in Quebec. It covers 3.57 km² and lies 14 km northwest of Rapide-des-Chiens.
- Maximum depth
- 44.5 msurveyed 2014
- deeper than 92% of the 1,506 surveyed lakes in Quebec
- Area
- 3.57 km²
- larger than 88% of the 29,407 lakes in Quebec
- Shoreline
- 21.8 km
- longer than 89% of the 29,407 lakes in Quebec
- Water clarity
- 4.9 mSecchi depth, 2025
- clearer than 70% of the 805 monitored lakes in Quebec
- Elevation
- 283 m
Today on the water
6.8 °C
Observed at Mont-Laurier, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.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 | W 10 | NW 20 | NW 20 | NW 15 | NW 10 | var. 5 |
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 5 | 4 | 6 | 9 | 9 | 5 | 3 | 1 |
| Precip. % | 60 | 30 | 30 | 30 | 30 | 0 | 0 | 0 |
Tonight: Mainly cloudy with 60 percent chance of showers. Wind west 20 km/h becoming light this evening. Low plus 4.
Weather: Mont-Laurier (local forecast), as of 3:03 a.m. EDT
Sun and moon
- Civil dawn
- 6:41 a.m.
- Sunrise
- 7:11 a.m.
- Sunset
- 6:26 p.m.
- Civil dusk
- 6:56 p.m.
- Moonrise
- 6:02 a.m.
- Moonset
- 5:44 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
34% of Lac Major 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 2014 records a maximum depth of 44.5 m, drawn from 48 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
- Official government depth map (PDF)
Not for navigation. Depths are from government surveys and may be outdated.
Water
Trophic status from the latest monitoring: oligo-mesotrophic (transition).
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.