Grenadier Pond

Toronto, Ontario · MNRF bathymetric survey

6.1m Mapped depth
20 ft

20 ha 5 contours Fishing access

Paddling Index40Modestsheltered geometry

Get directions

Depth scale

00.91.534.66.1 m

The lake

Survey readout

Grenadier Pond is mapped to a depth of 6.1 m (20 ft) on the Ontario MNRF survey and covers about 20 ha (50 acres) in Toronto, Ontario. Depths come from the Ontario MNRF survey of 1976.

Measured from the Ontario MNRF bathymetry survey.

Deepest mapped contour: 6.1 m (20 ft)
Survey year: 1976
Surface area: 20 ha (50 acres)
Shoreline: 3.3 km (2.0 mi) · irregular
Fishing access: 1 MNRF fishing access point · 1 shoreline access site

Additional depth details5 contours

Contour depths: 0–6.1 m (20 ft)
Deep-spot markers: 6.1 m (20 ft)

Compare with another lake

Location

Toronto, Ontario · the only mapped lake in this county

Chart data

Provenance

Sources: Ontario MNRF / LIO Bathymetry, OpenStreetMap (ODbL), Contains information licensed under the Open Government Licence – Ontario, Contains modified Copernicus Sentinel data (Sentinel-2), processed by ontariolakedepths.com, Copernicus DEM 30 m (© DLR/Airbus).

⚠ Not for navigation

Spot an error? Send a correction

Map details & sources5 sources

All layers registered to one bounding box; positions in WGS 84.

Survey-derived depth contours drape over Copernicus DEM (30 m) elevation, with a Copernicus Sentinel-2 satellite basemap and OpenStreetMap shoreline. Colour shows surveyed depth; dark lines are the survey's own isobaths.

Coordinates: 43.64203, -79.46678
MNRF lake ID: 17-6236-48331
Vertical exaggeration: 3.0× below the waterline; land at true scale
Basemap: Copernicus Sentinel-2 · ESA, via Microsoft Planetary Computer
Model size: 0.8 MB

Check the source: this lake’s record (17-6236-48331) in the Ontario MNRF bathymetry index, and the contour line layer the map is drawn from (Land Information Ontario open data, Open Government Licence – Ontario). Survey year: 1976. This model was built 2026-10-01. Depths between contours are interpolated, not measured.

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-16

40 / 100ModestData confidence: High

Grenadier Pond has a substantially developed setting, well sheltered geometry, substantial nearby higher-volume roads.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Modest	0.7 of 35	38% natural land cover within 150 m of shore (35% forest, 4% wetland; 59% developed)
Geometric wind exposure	Excellent	26.1 of 29	mean fetch 586 m · 44% of sampled water within 500 m of shelter · short fetch in most directions
Motor & speed rules	Not modelled	—	Canada publishes vessel motor and speed restrictions as federal legal schedules, not map data, so they are not part of the Ontario index. Check local signage and Transport Canada rules before going out.
Public access	Good	12.3 of 18	1 MNRF fishing access point · shoreline access
Road isolation	Modest	0.9 of 18	substantial nearby higher-volume roads · 888 Ontario Road Network segments within 1.2 km (traffic estimated from road class, not measured)

Additional paddling considerations

These describe the lake but are not part of the v1 Paddling Index and do not change the number above.

Wake sensitivity: Moderate — narrow in places — wakes would carry across parts of the lake
Observed motorized activity: Unknown — No lake-level measurement of boat traffic is available. Legal permission to operate motors is not evidence of use.
Wildlife habitat potential: Limited — 35% forest and 4% wetland cover within 150 m of shore
Mapped wildlife habitat: None mapped — Ontario MNRF has not mapped moose, deer or waterfowl habitat within 1 km of this lake. The province maps these areas where it has surveyed, so this is not evidence that wildlife is absent. · Ontario MNRF Wildlife Values Area. Contains information licensed under the Open Government Licence – Ontario.

Compare Ontario lakes by Paddling Index →

How this index is calculated. The Paddling Index is a relative composite derived from lake geometry and public land-cover, access and road-network data. It is not a user review, a safety rating, or a prediction of an individual outing. Differences of a few points should not be treated as meaningful — an 84 and an 82 are broadly comparable. Components and weights for Ontario lakes: natural setting 35%, geometric wind exposure 29%, public access 18%, road isolation 18%. Motor and speed restrictions are not modelled for Ontario, and road traffic is estimated from road class, not measured. Where a component has no data the remaining weights are renormalized and the confidence rating is lowered; below Medium confidence no number is shown. Ontario scores are relative to other Ontario lakes and are not directly comparable with Paddling Index scores on our sister sites, which use different data sources and include a watercraft-rules component. Sources: Ontario MNRF bathymetry outline (0 m contour or survey index polygon), Ontario Land Cover v1.0, Ontario MNRF (Open Government Licence – Ontario) (2020), Ontario MNRF Fishing Access Points (Open Government Licence – Ontario) (2026-09) and Ontario Road Network (Open Government Licence – Ontario); traffic estimated by road class, not measured (2026-09). Conditions change quickly — check current weather and local conditions before going out.

Angler catch reports

Fish ON-Line · 2013–2024

What anglers say they caught here, logged trip by trip in Ontario’s Fish ON-Line app — most recently in October 2024.

22Trips logged

15Species

275Fish reported

Common Carp

White Bass

White Perch

Pictures are sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).

All species & trip details15 species

Bluegill10 of 22 trips · 163 caught

Largemouth Bass6 of 22 trips · 6 caught

Black Crappie5 of 22 trips · 6 caught

Northern Pike4 of 22 trips · 5 caught

Pumpkinseed3 of 22 trips · 52 caught

Channel Catfish2 of 22 trips · 12 caught

White Perch2 of 22 trips · 11 caught

Brown Bullhead2 of 22 trips · 4 caught

Yellow Perch2 of 22 trips · 4 caught

Bowfin1 trip · one angler’s report · 6 caught

Common Carp1 trip · one angler’s report · 2 caught

Muskellunge1 trip · one angler’s report · 1 caught

Smallmouth Bass1 trip · one angler’s report · 1 caught

White Bass1 trip · one angler’s report · 1 caught

White Crappie1 trip · one angler’s report · 1 caught

How people fish it: shore 95% · ice 5%
Catch rate: about 4.3 fish an hour, all species together (22 trips, 64 hours logged)
Kept: 50% of the fish reported; the rest were released

About these fish → the Fish of Ontario guide

Trips are logged voluntarily by anglers in Ontario’s Fish ON-Line app. This is what people report catching, not a Ministry survey, and a species nobody has logged may still be here. Contains information licensed under the Open Government Licence – Ontario. Source: Ontario Ministry of Natural Resources, Fish ON-Line. A logged catch does not mean it is legal to catch or keep: check the Ontario Fishing Regulations Summary for this lake’s zone and exceptions.

Quick answers

Grenadier Pond — common questions

How deep is Grenadier Pond?

The deepest contour on the Ontario MNRF bathymetric survey of Grenadier Pond is 6.1 m (20 ft). That is the deepest depth the historical survey map records, which may differ from the deepest point of the lake itself.

How big is Grenadier Pond?

Grenadier Pond covers about 20 ha (50 acres) in Toronto, Ontario.

Is there public access to Grenadier Pond?

The Ontario MNRF lists 1 fishing access point within 100 m of the shoreline of Grenadier Pond: 1 shoreline access site. Recorded ownership: 1 municipal. The list includes municipal and privately owned sites, and some may charge a fee or restrict parking, so it confirms a place anglers use rather than a public right of way. Check locally before you go.