Map of Crystal Lake with depth contours

Crystal Lake

48.7076° N, 91.278° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Crystal Lake is 42.7 m deep at its deepest point, deeper than 90% of the 2,688 surveyed lakes in Ontario. It covers 6.29 km² and lies 4.6 km southwest of Kawene.

Government surveys have recorded 9 fish species here, including smallmouth bass, lake trout and cisco.

Maximum depth
42.7 m
deeper than 90% of the 2,688 surveyed lakes in Ontario
Area
6.29 km²
larger than 93% of the 18,731 lakes in Ontario
Shoreline
18.4 km
longer than 86% of the 18,731 lakes in Ontario
Water clarity
5 mSecchi depth, 2024
clearer than 79% of the 1,251 monitored lakes in Ontario
Fish species
9
more than 69% of the 2,454 surveyed lakes in Ontario
Elevation
431 m

Today on the water

0 °C

Wind calmfeels like -2 °C

Observed at Atikokan, as of 2:00 a.m. EST

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 10 a.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

Hourly forecast, next 24 hours
Time3 a.m.6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.
Wind km/hvar. 5SE 10SE 10SE 20SE 20SE 20SE 20SE 20
Gusts km/h40
Waves (est.) m0.10.10.10.2
Temp. °C0-141214121110
Precip. %00000000

Tonight: Partly cloudy with 40 percent chance of showers early this evening then clear. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low minus 2.

Weather: Atikokan (local forecast), as of 2:05 a.m. EST

Sun and moon

Civil dawn
6:45 a.m.
Sunrise
7:16 a.m.
Sunset
6:27 p.m.
Civil dusk
6:58 p.m.
Moonrise
6:09 a.m.
Moonset
5:46 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

32% of Crystal Lake 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 records a maximum depth of 42.7 m, drawn from 18 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 25 government surveys (2010–2010) that recorded them.

  • Smallmouth Bass10 of 25
  • Lake Trout9 of 25
  • Cisco6 of 25
  • Northern Pike5 of 25
  • Yellow Perch4 of 25
  • Walleye2 of 25
Forage fish and other species (3)

Forage fish

  • Rainbow Smelt 4
  • Ninespine Stickleback 3

Other

  • White Sucker 8

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 5 species from Crystal Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm124Mercury
Northern Pike55-60 cm128PFAS
Smallmouth Bass35-40 cm124Mercury
Walleye50-55 cm4Do not eatPFAS
White Sucker40-45 cm1616PFAS

* 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 5. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 4 years between 2012 and 2024; the latest annual mean is 5 m.

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

Getting on the water

1 listed boat launch. marks launches on the map.