Map of Wilcox Lake with depth contours

Wilcox Lake

43.9486° N, 79.4361° W

Depth contours from the 1980 government survey. Not for navigation.

Download the depth map (SVG)

Wilcox Lake is 16 m deep at its deepest point, deeper than 50% of the 2,688 surveyed lakes in Ontario. It covers 0.57 km² and lies beside Oak Ridges.

Government surveys have recorded 29 fish species here, including pumpkinseed, largemouth bass and yellow perch.

Maximum depth
16 msurveyed 1980
deeper than 50% of the 2,688 surveyed lakes in Ontario
Area
0.57 km²
larger than 54% of the 18,731 lakes in Ontario
Shoreline
5.9 km
longer than 56% of the 18,731 lakes in Ontario
Water clarity
3 mSecchi depth, 2022
less clear than 64% of the 1,251 monitored lakes in Ontario
Fish species
29
more than 99% of the 2,454 surveyed lakes in Ontario
Elevation
294 m

Today on the water

7.9 °C

Wind W 8 km/h

Observed at Richmond Hill, as of 4:00 a.m. EDT

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

Hourly forecast, next 24 hours
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/hW 15W 15W 15NW 30NW 30NW 15var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.10.20.2
Temp. °C581317181285
Precip. %2040402020000

Tonight: Partly cloudy with 40 percent chance of showers this evening. Clearing overnight. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 5.

Weather: Richmond Hill (local forecast), as of 4:02 a.m. EDT

Sun and moon

Civil dawn
6:56 a.m.
Sunrise
7:25 a.m.
Sunset
6:44 p.m.
Civil dusk
7:13 p.m.
Moonrise
6:17 a.m.
Moonset
6:02 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Newmarket, as of 4:00 a.m. EDT

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

46% of Wilcox Lake is shallower than 3 m, and 42% 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 1980 records a maximum depth of 16 m, drawn from 10 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 48 government surveys (1400–2022) that recorded them.

  • Pumpkinseed36 of 48
  • Largemouth Bass35 of 48
  • Yellow Perch31 of 48
  • Northern Pike23 of 48
  • Bluegill21 of 48
  • Rock Bass16 of 48
  • Black Crappie7 of 48
  • Smallmouth Bass4 of 48Not recorded since 2001
  • Brook Trout1 of 48Not recorded since 2003
  • WalleyeStocked
Forage fish and other species (19)

Forage fish

  • Banded Killifish 17
  • Central Mudminnow 13
  • Common Shiner 8
  • Creek Chub 8
  • Golden Shiner 8
  • Bluntnose Minnow 7
  • Emerald Shiner 3
  • Fathead Minnow 3
  • Iowa Darter 2
  • Johnny Darter 2
  • Blacknose Dace 1
  • Blacknose Shiner 1
  • Brook Stickleback 1
  • Spottail Shiner 1

Other

  • Brown Bullhead 22
  • White Sucker 13
  • Common Carp 9
  • Bowfin 4
  • Green Sunfish 1

Numbers are the surveys that recorded each species.

Stocking

Walleye1,500 fish in 1 year, most recently 2017

All stocking records (1)
YearSpeciesFishStage
2017Walleye1,500Fingerlings

Eating your catch

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

SpeciesLengthGeneral populationSensitive population*Contaminant
Black Crappie20-25 cm168Mercury
Bluegill15-20 cm1616Precautionary
Largemouth Bass30-35 cm124Mercury
Rock Bass15-20 cm164Mercury
Yellow Perch15-20 cm1612Precautionary
Brown Bullhead25-30 cm1616Precautionary
Common Carp55-60 cm44PCB

* 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 16. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 19 years between 1995 and 2022; the latest annual mean is 3 m.

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

Photos

Boardwalk in Lake Wilcox Park 2024
Photo: Canmenwalker, CC BY 4.0, via Wikimedia Commons
Lake Wilcox - 21687336276
Photo: David Zhang from Canada, CC BY-SA 2.0, via Wikimedia Commons
Lake Wilcox aerial view 2024
Photo: Canmenwalker, CC BY 4.0, via Wikimedia Commons