Map of Upper Pancake Lake with depth contours

Upper Pancake Lake

47.1056° N, 84.62° W

Depth contours from the 1965 government survey. Not for navigation.

Download the depth map (SVG)

Upper Pancake Lake is 15.2 m deep at its deepest point, shallower than 55% of the 2,688 surveyed lakes in Ontario. It covers 1.05 km² and lies 15 km south of Montreal River Harbour.

Government surveys have recorded 13 fish species here, including brook trout, lake trout and burbot.

Maximum depth
15.2 msurveyed 1965
shallower than 55% of the 2,688 surveyed lakes in Ontario
Area
1.05 km²
larger than 69% of the 18,731 lakes in Ontario
Shoreline
7.8 km
longer than 66% of the 18,731 lakes in Ontario
Fish species
13
more than 84% of the 2,454 surveyed lakes in Ontario
Elevation
355 m

Today on the water

0.6 °C

Partly CloudyWind calm

Observed at Montreal River Harbour, as of 7:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m.

Hourly forecast, next 24 hours
Time8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.
Wind km/hvar. 5W 20W 20var. 5SE 10SE 10SE 10SE 20
Gusts km/h404040
Waves (est.) m0.10.10.10.10.1
Temp. °C581195357
Precip. %1010000000

Today: A mix of sun and cloud with 30 percent chance of showers early this morning. Becoming sunny this afternoon. Wind becoming west 20 km/h gusting to 40 late this morning. High 11. UV index 3 or moderate.

Weather: Montreal River Harbour (local forecast), as of 7:02 a.m. EDT

Sun and moon

Civil dawn
7:17 a.m.
Sunrise
7:48 a.m.
Sunset
7:02 p.m.
Civil dusk
7:32 p.m.
Moonrise
6:40 a.m.
Moonset
6:20 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

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 1965 records a maximum depth of 15.2 m, drawn from 7 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 37 government surveys (2008–2013) that recorded them.

  • Brook Trout24 of 37
  • Lake Trout10 of 37
  • Burbot2 of 37
Forage fish and other species (10)

Forage fish

  • Common Shiner 12
  • Golden Shiner 10
  • Lake Chub 6
  • Creek Chub 4
  • Fathead Minnow 4
  • Northern Pearl Dace 4
  • Blacknose Shiner 3
  • Slimy Sculpin 1

Other

  • White Sucker 33
  • Longnose Sucker 18

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 2 species from Upper Pancake Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Brook Trout30-35 cm124Mercury
Lake Trout50-55 cm124Mercury, PCB

* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide

Fishing regulations: Fisheries Management Zone 10. Check seasons and limits before you fish.