Map of Dalrymple Lake with depth contours

Dalrymple Lake

44.6405° N, 79.1109° W

Depth contours from the 1967 government survey. Not for navigation.

Download the depth map (SVG)

Dalrymple Lake is 9.1 m deep at its deepest point, shallower than 76% of the 2,688 surveyed lakes in Ontario. It covers 13.9 km² and lies beside Avery Point.

Government surveys have recorded 16 fish species here, including yellow perch, pumpkinseed and northern pike.

Maximum depth
9.1 msurveyed 1967
shallower than 76% of the 2,688 surveyed lakes in Ontario
Area
13.9 km²
larger than 97% of the 18,731 lakes in Ontario
Shoreline
41.8 km
longer than 95% of the 18,731 lakes in Ontario
Water clarity
1.6 mSecchi depth, 2025
less clear than 92% of the 1,251 monitored lakes in Ontario
Fish species
16
more than 91% of the 2,454 surveyed lakes in Ontario
Elevation
224 m

Today on the water

5.6 °C

Wind W 6 km/h

Observed at Orillia, as of 3:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.3 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
Time4 a.m.7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.
Wind km/hW 15W 15NW 20NW 30NW 30NW 15var. 5var. 5
Gusts km/h5050
Waves (est.) m0.20.20.20.30.3
Temp. °C45913151285
Precip. %40404040202000

Tonight: Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 4.

Weather: Orillia (local forecast), as of 3:03 a.m. EDT

Sun and moon

Civil dawn
6:55 a.m.
Sunrise
7:24 a.m.
Sunset
6:42 p.m.
Civil dusk
7:11 p.m.
Moonrise
6:16 a.m.
Moonset
6:00 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Barrie, as of 3:00 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

65% of Dalrymple Lake is shallower than 3 m, and 20% 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 1967 records a maximum depth of 9.1 m, drawn from 13 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 43 government surveys (2003–2013) that recorded them.

  • Yellow Perch41 of 43
  • Pumpkinseed25 of 43
  • Northern Pike23 of 43
  • Rock Bass17 of 43
  • Walleye17 of 43
  • Black Crappie12 of 43
  • Smallmouth Bass9 of 43
  • Largemouth Bass6 of 43
  • Bluegill4 of 43
Forage fish and other species (7)

Forage fish

  • Golden Shiner 10
  • Spottail Shiner 9
  • Blackchin Shiner 3
  • Bluntnose Minnow 3
  • Banded Killifish 1

Other

  • White Sucker 18
  • Brown Bullhead 14

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 10 species from Dalrymple Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Black Crappie20-25 cm1616Precautionary
Largemouth Bass30-35 cm168Mercury
Northern Pike55-60 cm164Mercury
Pumpkinseed15-20 cm1616Precautionary
Rock Bass15-20 cm168Mercury
Smallmouth Bass35-40 cm124Mercury
Walleye40-45 cm168Mercury
Yellow Perch20-25 cm168Mercury
Brown Bullhead25-30 cm1616Precautionary
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 17. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 15 years between 1997 and 2025; the latest annual mean is 1.6 m.

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

Getting on the water

1 listed boat launch; 1 with parking listed. marks launches on the map.