Map of Nagagamisis Lake with depth contours

Nagagamisis Lake

49.4772° N, 84.6572° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Nagagamisis Lake is 12.2 m deep at its deepest point, shallower than 65% of the 2,688 surveyed lakes in Ontario. It covers 24.9 km² and lies 27 km north of Cree.

Government surveys have recorded 11 fish species here, including walleye, yellow perch and northern pike.

Maximum depth
12.2 m
shallower than 65% of the 2,688 surveyed lakes in Ontario
Area
24.9 km²
larger than 98% of the 18,731 lakes in Ontario
Shoreline
70.8 km
longer than 97% of the 18,731 lakes in Ontario
Water clarity
3.2 mSecchi depth, 2018
less clear than 58% of the 1,251 monitored lakes in Ontario
Fish species
11
more than 77% of the 2,454 surveyed lakes in Ontario
Elevation
286 m

Today on the water

2.2 °C

Wind NW 6 km/h

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

choppy Estimated waves, next 12 hours: up to 0.3 m. Around 8 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
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/hNW 10NW 10W 20W 20W 20var. 5SE 10SE 10
Waves (est.) m0.10.10.30.3
Temp. °C10379974
Precip. %3000000020

Tonight: Cloudy with 60 percent chance of showers. Wind northwest 20 km/h gusting to 40 becoming light early this evening. Low minus 1.

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

Sun and moon

Civil dawn
7:18 a.m.
Sunrise
7:50 a.m.
Sunset
7:00 p.m.
Civil dusk
7:32 p.m.
Moonrise
6:42 a.m.
Moonset
6:18 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 records a maximum depth of 12.2 m, drawn from 21 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 27 government surveys (2011–2011) that recorded them.

  • Walleye26 of 27
  • Yellow Perch22 of 27
  • Northern Pike18 of 27
  • Cisco11 of 27
  • Lake Whitefish5 of 27
Forage fish and other species (6)

Forage fish

  • Spottail Shiner 12
  • Trout-Perch 10
  • Logperch 7
  • Emerald Shiner 1
  • Johnny Darter 1

Other

  • White Sucker 20

Numbers are the surveys that recorded each species.

Eating your catch

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

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm4Do not eatMercury
Walleye40-45 cm124Mercury

* 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 7. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 2 years between 2015 and 2018; the latest annual mean is 3.2 m.

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

Getting on the water

1 listed boat launch. marks launches on the map.