Six Mile Lake Pothole

Muskoka, Ontario · MNRF bathymetric survey

15.2m Mapped depth
50 ft

3.8 ha 6 contours

Paddling Index73GoodMedium confidencesheltered geometry · wooded shoreline

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Depth scale

00.936.19.112.215.2 m

The lake

Survey readout

Six Mile Lake Pothole is mapped to a depth of 15.2 m (50 ft) on the Ontario MNRF survey and covers about 3.8 ha (9.5 acres) in Muskoka, Ontario.

Measured from the Ontario MNRF bathymetry survey.

Deepest mapped contour: 15.2 m (50 ft)
Surface area: 3.8 ha (9.5 acres)
Shoreline: 1.0 km (0.6 mi) · lobed
Fishing access: No MNRF launch listed · check with Six Mile Lake Provincial Park
In: Six Mile Lake Provincial Park · Ontario Parks

Additional depth details6 contours

Contour depths: 0–15.2 m (50 ft)
Deep-spot markers: 15.2 m (50 ft)

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Location

Muskoka, Ontario · 15 nearest of 65 lakes and 1 river · tap a dot to open it

Chart data

Provenance

Sources: Ontario MNRF / LIO Bathymetry, Ontario FRI Leaf-On Imagery, OpenStreetMap (ODbL), Contains information licensed under the Open Government Licence – Ontario, Copernicus DEM 30 m (© DLR/Airbus).

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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 Ontario FRI aerial basemap and OpenStreetMap shoreline. Colour shows surveyed depth; dark lines are the survey's own isobaths.

Coordinates: 44.89668, -79.76063
MNRF lake ID: 17-5978-49720
Vertical exaggeration: 1.98× below the waterline; land at true scale
Basemap: Ontario FRI
Model size: 0.2 MB

Check the source: this lake’s record (17-5978-49720) 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: not recorded in the source. This model was built 2026-09-15. Depths between contours are interpolated, not measured.

Paddling

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

73 / 100GoodData confidence: Medium

Six Mile Lake Pothole has a mostly natural, lightly 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	Very Good	34.2 of 43	86% natural land cover within 150 m of shore (38% forest, 11% wetland; 12% developed)
Geometric wind exposure	Excellent	35.7 of 36	mean fetch 179 m · 100% 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	Not listed	—	No publicly listed MNRF fishing access point within 100 m of this shoreline. Municipal, private and informal launches are not all in this source, so this is not evidence that access is poor — the component is excluded and the remaining weights are renormalized.
Road isolation	Modest	3.3 of 21	substantial nearby higher-volume roads · 76 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: High — 38% forest and 11% wetland cover within 150 m of shore
Mapped wildlife habitat: Mapped — Ontario MNRF has mapped deer wintering area within 1 km of this lake. These are habitat records from provincial surveys, not animal counts; areas with nothing mapped may still hold wildlife. · 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) 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 · 2015

One angler has logged a trip here: 1 northern pike and 4 yellow perch, fished from shore, in June 2015.

Northern Pike

Yellow Perch

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

This is a single angler’s report — a snapshot of one trip, not a picture of the whole lake.

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

Six Mile Lake Pothole — common questions

How deep is Six Mile Lake Pothole?

The deepest contour on the Ontario MNRF bathymetric survey of Six Mile Lake Pothole is 15.2 m (50 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 Six Mile Lake Pothole?

Six Mile Lake Pothole covers about 3.8 ha (9.5 acres) in Muskoka, Ontario.

Is there public access to Six Mile Lake Pothole?

No fishing access point for Six Mile Lake Pothole appears in the Ontario MNRF fishing access point list (within 100 m of the shoreline), but Six Mile Lake Pothole lies inside Six Mile Lake Provincial Park (Ontario Parks), which runs its own facilities and is not covered by that data. Check with the park for launch details.

More lakes in Muskoka