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Map of West Jackfish Lake with depth contours

West Jackfish Lake

48.9363° N, 93.6661° W

Depth contours from the 1970 government survey. Not for navigation.

Download the depth map (SVG)

West Jackfish Lake, Ontario. 48.9363° N, 93.6661° W

Maximum depth 12.2 m (1970 survey). Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/west-jackfish-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.

West Jackfish Lake is 12.2 m deep at its deepest point, shallower than 65% of the 2,688 surveyed lakes in Ontario. It covers 9.1 km² and lies 5.3 km northeast of Manomin.

Government surveys have recorded 15 fish species here, including walleye, yellow perch and black crappie.

Maximum depth
12.2 msurveyed 1970
shallower than 65% of the 2,688 surveyed lakes in Ontario
Area
9.1 km²
larger than 95% of the 18,731 lakes in Ontario
Shoreline
47.7 km
longer than 95% of the 18,731 lakes in Ontario
Fish species
15
more than 89% of the 2,454 surveyed lakes in Ontario
Elevation
347 m

Today on the water

-1.3 °C

Wind calmfeels like -2 °C

Observed at Fort Frances, as of 4:00 a.m. CDT

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.

Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hSE 10SE 10SE 20SE 20SE 20SE 20SE 20SE 15
Gusts km/h40404040
Waves (est.) m0.10.10.20.20.2
Temp. °C24111516141413
Precip. %2020203030101010

Tonight: Clear. Wind west 20 km/h gusting to 40 becoming light this evening. Low plus 1.

Weather: Fort Frances (local forecast), as of 4:03 a.m. CDT

Sun and moon

Civil dawn
6:54 a.m.
Sunrise
7:26 a.m.
Sunset
6:36 p.m.
Civil dusk
7:08 p.m.
Moonrise
6:19 a.m.
Moonset
5:55 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

The government depth survey from 1970 records a maximum depth of 12.2 m, drawn from 20 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 17 government surveys (2010–2010) that recorded them.

  • Walleye13 of 17
  • Yellow Perch12 of 17
  • Black Crappie7 of 17
  • Northern Pike5 of 17
  • Smallmouth Bass3 of 17
  • Cisco2 of 17
  • Burbot1 of 17
  • Lake Whitefish1 of 17
  • Pumpkinseed1 of 17
  • Rock Bass1 of 17
Forage fish and other species (5)

Forage fish

  • Spottail Shiner 6
  • Trout-Perch 4
  • Emerald Shiner 1

Other

  • White Sucker 7
  • Shorthead Redhorse 1

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 7 species from West Jackfish Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Black Crappie25-30 cm1616Precautionary
Lake Trout35-40 cm168Mercury
Lake Whitefish45-50 cm1612Precautionary
Northern Pike55-60 cm84Mercury
Smallmouth Bass35-40 cm124Mercury
Walleye40-45 cm84Mercury
White Sucker45-50 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.