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Map of Atikwa Lake with depth contours

Atikwa Lake

49.4977° N, 93.5335° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Atikwa Lake, Ontario. 49.4977° N, 93.5335° W

Maximum depth 54.9 m. Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/atikwa-lake/, 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.
  • Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • 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).
  • Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.

Atikwa Lake is 54.9 m deep at its deepest point, deeper than 95% of the 2,688 surveyed lakes in Ontario. It covers 52.8 km² and lies 20 km south of St. Pie X.

Government surveys have recorded 17 fish species here, including rock bass, yellow perch and northern pike.

Maximum depth
54.9 m
deeper than 95% of the 2,688 surveyed lakes in Ontario
Area
52.8 km²
larger than 99% of the 18,731 lakes in Ontario
Shoreline
318 km
longer than 99% of the 18,731 lakes in Ontario
Fish species
17
more than 93% of the 2,454 surveyed lakes in Ontario
Elevation
358 m

Today on the water

4.4 °C

ClearWind S 8 km/h

Observed at Sioux Narrows, as of 2:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 1 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

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/hSE 10SE 10SE 10SE 10SE 20SE 20SE 20SE 20
Gusts km/h404040
Waves (est.) m0.10.10.10.1
Temp. °C4581113131413
Precip. %2020202030301010

Tonight: A few clouds. Wind northwest 20 km/h becoming light this evening. Low plus 4.

Weather: Sioux Narrows (local forecast), as of 2:07 a.m. CDT

Sun and moon

Civil dawn
6:54 a.m.
Sunrise
7:26 a.m.
Sunset
6:35 p.m.
Civil dusk
7:07 p.m.
Moonrise
6:19 a.m.
Moonset
5:54 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

8% of Atikwa Lake is deeper than 30 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 54.9 m, drawn from 165 depth contours.

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

Fish

Sport fish by the share of the 30 government surveys (2010–2010) that recorded them.

  • Rock Bass18 of 30
  • Yellow Perch15 of 30
  • Northern Pike11 of 30
  • Lake Trout10 of 30
  • Lake Whitefish10 of 30
  • Cisco8 of 30
  • Walleye8 of 30
  • Burbot7 of 30
  • Pumpkinseed5 of 30
Forage fish and other species (8)

Forage fish

  • Trout-Perch 3
  • Logperch 2
  • Spottail Shiner 2
  • Emerald Shiner 1
  • Golden Shiner 1
  • Johnny Darter 1

Other

  • White Sucker 13
  • Shorthead Redhorse 1

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 6 species from Atikwa Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm4Do not eatMercury
Lake Whitefish45-50 cm1612Selenium
Northern Pike55-60 cm4Do not eatMercury
Walleye40-45 cm124Mercury
Burbot (Ling)50-55 cm8Do not eatMercury
White Sucker40-45 cm1616Precautionary

* 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.