Map of Lac Huit Mille with depth contours

Lac Huit Mille

48.4772° N, 67.091° W

Depth contours from the 1979 government survey. Not for navigation.

Download the depth map (SVG)

Lac Huit Mille is 17.9 m deep at its deepest point, deeper than 54% of the 1,506 surveyed lakes in Quebec. It covers 1.3 km² and lies beside Lac-Huit-Mille.

Maximum depth
17.9 msurveyed 1979
deeper than 54% of the 1,506 surveyed lakes in Quebec
Area
1.3 km²
larger than 78% of the 29,407 lakes in Quebec
Shoreline
6.7 km
longer than 69% of the 29,407 lakes in Quebec
Water clarity
7.1 mSecchi depth, 2025
clearer than 92% of the 805 monitored lakes in Quebec
Elevation
346 m

Today on the water

9.2 °C

Wind WNW 7 km/h

Observed at Amqui, as of 10:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 11 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.8 a.m.
Wind km/hW 20W 20W 20W 20W 20W 20W 20NW 20
Gusts km/h4040404040404040
Waves (est.) m0.20.20.20.2
Temp. °C810744444
Precip. %030300003030

Today: A mix of sun and cloud. 30 percent chance of showers this afternoon. Wind west 20 km/h gusting to 40. High 10. UV index 3 or moderate.

Weather: Amqui (local forecast), as of 10:02 a.m. EDT

Sun and moon

Civil dawn
6:08 a.m.
Sunrise
6:39 a.m.
Sunset
5:50 p.m.
Civil dusk
6:22 p.m.
Moonrise
5:27 a.m.
Moonset
5:08 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

30% of Lac Huit Mille 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 1979 records a maximum depth of 17.9 m, drawn from 20 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 Depths are from government surveys and may be outdated.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 16 years between 2010 and 2025; the latest annual mean is 7.1 m.

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