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Map of Arrowroot Lake with depth contours

Arrowroot Lake

49.1081° N, 89.156° W

Depth contours from the 2010 government survey. Not for navigation.

Download the depth map (SVG)

Arrowroot Lake, Ontario. 49.1081° N, 89.156° W

Maximum depth 12 m (2010 survey). Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/arrowroot-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.

Arrowroot Lake is 12 m deep at its deepest point, shallower than 68% of the 2,688 surveyed lakes in Ontario. It covers 1.45 km² and lies 40 km west of Eagle Mountain.

Government surveys have recorded 6 fish species here, including walleye, northern pike and lake whitefish.

Maximum depth
12 msurveyed 2010
shallower than 68% of the 2,688 surveyed lakes in Ontario
Area
1.45 km²
larger than 75% of the 18,731 lakes in Ontario
Shoreline
6.5 km
longer than 60% of the 18,731 lakes in Ontario
Fish species
6
more than 57% of the 2,454 surveyed lakes in Ontario
Elevation
429 m

Today on the water

-1.3 °C

ClearWind WSW 6 km/hfeels like -4 °C

Observed at Dorion, as of 5:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 6 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hW 10var. 5S 10S 10SE 10SE 20SE 20SE 20
Gusts km/h4040
Waves (est.) m0.10.10.10.10.1
Temp. °C029131211109
Precip. %00000000

Tonight: Partly cloudy. 40 percent chance of showers early this evening. Clearing near midnight. Wind northwest 20 km/h becoming light this evening. Low minus 1.

Weather: Dorion (local forecast), as of 5:07 a.m. EDT

Sun and moon

Civil dawn
7:36 a.m.
Sunrise
8:08 a.m.
Sunset
7:18 p.m.
Civil dusk
7:50 p.m.
Moonrise
7:01 a.m.
Moonset
6:37 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

47% of Arrowroot Lake is shallower than 3 m, and 29% is deeper than 5 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 from 2010 records a maximum depth of 12 m, drawn from 24 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 10 government surveys (2008–2008) that recorded them.

  • Walleye10 of 10
  • Northern Pike6 of 10
  • Lake Whitefish4 of 10
  • Yellow Perch4 of 10
  • Smallmouth Bass3 of 10
Other species (1)
  • White Sucker 4

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 3 species from Arrowroot Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm4Do not eatMercury
Smallmouth Bass35-40 cm84Mercury
Walleye40-45 cm8Do not eatMercury

* 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 6. Check seasons and limits before you fish.