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Map of Lac Bigelow with depth contours

Lac Bigelow

46.0625° N, 75.6492° W

Depth contours from the 2012 government survey. Not for navigation.

Download the depth map (SVG)

Lac Bigelow, Quebec. 46.0625° N, 75.6492° W

Maximum depth 45.5 m (2012 survey). Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-bigelow/, 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 Bigelow is 45.5 m deep at its deepest point, deeper than 92% of the 1,506 surveyed lakes in Quebec. It covers 0.78 km² and lies 5.5 km south of Lac-Campion.

Maximum depth
45.5 msurveyed 2012
deeper than 92% of the 1,506 surveyed lakes in Quebec
Area
0.78 km²
larger than 70% of the 29,407 lakes in Quebec
Shoreline
4.8 km
longer than 59% of the 29,407 lakes in Quebec
Water clarity
6.4 mSecchi depth, 2024
clearer than 88% of the 805 monitored lakes in Quebec
Elevation
203 m

Today on the water

6.8 °C

Wind W 7 km/h

Observed at Maniwaki, as of 3:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 4 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Time4 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/hW 10NW 10NW 20NW 20NW 20NW 10var. 5var. 5
Waves (est.) m0.10.10.10.1
Temp. °C5581111742
Precip. %6030303030000

Tonight: Partly cloudy with 60 percent chance of showers. Wind west 20 km/h becoming light early this evening. Low plus 5.

Weather: Maniwaki (local forecast), as of 3:03 a.m. EDT

Sun and moon

Civil dawn
6:41 a.m.
Sunrise
7:11 a.m.
Sunset
6:27 p.m.
Civil dusk
6:57 p.m.
Moonrise
6:02 a.m.
Moonset
5:45 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

57% of Lac Bigelow 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 2012 records a maximum depth of 45.5 m, drawn from 17 depth contours.

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 Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: oligotrophic.

Clarity was measured with a Secchi disk in 14 years between 2009 and 2024; the latest annual mean is 6.4 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)