Lac Dufault
48.3137° N, 78.998° W
Depth contours from the 1978 government survey. Not for navigation.
Download the depth map (SVG)Lac Dufault, Quebec. 48.3137° N, 78.998° W
Maximum depth 19.1 m (1978 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-dufault/, 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).
- Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.
Lac Dufault is 19.1 m deep at its deepest point, deeper than 59% of the 1,506 surveyed lakes in Quebec. It covers 23 km² and lies beside Amulet.
- Maximum depth
- 19.1 msurveyed 1978
- deeper than 59% of the 1,506 surveyed lakes in Quebec
- Area
- 23 km²
- larger than 98% of the 29,407 lakes in Quebec
- Shoreline
- 77.5 km
- longer than 97% of the 29,407 lakes in Quebec
- Water clarity
- 3.7 mSecchi depth, 2019
- less clear than 52% of the 805 monitored lakes in Quebec
- Elevation
- 293 m
Today on the water
4.5 °C
Observed at Rouyn-Noranda, as of 1:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m.
| Time | 2 a.m. | 5 a.m. | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | W 15 | W 15 | W 20 | NW 20 | NW 20 | W 10 | W 10 |
| Gusts | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | |||
| Temp. °C | 2 | 1 | 1 | 4 | 9 | 7 | 4 | 2 |
| Precip. % | 0 | 0 | 30 | 30 | 30 | 0 | 0 | 0 |
Tonight: Partly 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: Rouyn-Noranda (local forecast), as of 1:03 a.m. EDT
Sun and moon
- Civil dawn
- 6:55 a.m.
- Sunrise
- 7:26 a.m.
- Sunset
- 6:38 p.m.
- Civil dusk
- 7:09 p.m.
- Moonrise
- 6:17 a.m.
- Moonset
- 5:57 p.m.
- Moon
- Waning crescent, 1% lit
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Depth
7% of Lac Dufault 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 from 1978 records a maximum depth of 19.1 m, drawn from 95 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).
Clarity was measured with a Secchi disk in 9 years between 2010 and 2019; the latest annual mean is 3.7 m.
Photos
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Every Friday by email: the Environment Canada forecast and any weather alerts in effect.