Cassels Lake
100 ft
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Depth scale
Survey readout
Cassels Lake is mapped to a depth of 30.5 m (100 ft) on the Ontario MNRF survey and covers about 751 ha (1,856 acres) in Nipissing District, Ontario. Depths come from the Ontario MNRF survey of 1971.
Measured from the Ontario MNRF bathymetry survey.
- Deepest mapped contour
- 30.5 m (100 ft)
- Survey year
- 1971
- Surface area
- 751 ha (1,856 acres)
- Shoreline
- 47.4 km (29.5 mi) · irregular
- Fishing access
- 2 MNRF fishing access points · 2 boat launches
- Borders
- White Bear Forest Conservation Reserve · Ontario Parks · 18% of shoreline
Additional depth details5 contours
- Contour depths
- 0–30.5 m (100 ft)
- Deep-spot markers
- 30.5 m (100 ft)
Provenance
Sources: Ontario MNRF / LIO Bathymetry, Ontario FRI Leaf-On Imagery, Ontario FRI LiDAR DTM, OpenStreetMap (ODbL), Contains information licensed under the Open Government Licence – Ontario.
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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 Ontario LiDAR (FRI DTM) elevation, with a Ontario FRI aerial basemap and OpenStreetMap shoreline. Colour shows surveyed depth; dark lines are the survey's own isobaths.
- Coordinates
- 47.06961, -79.71533
- MNRF lake ID
- 17-5970-52137
- Vertical exaggeration
- 1.4×
- Basemap
- Ontario FRI
- Model size
- 1.6 MB
Check the source: this lake’s record (17-5970-52137) 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: 1971. This model was built 2026-09-06. Depths between contours are interpolated, not measured.
Paddling
Paddling Index methodology v1.0 · calculated 2026-09-16Cassels Lake has a heavily wooded and largely undeveloped setting, moderate open-water exposure, some nearby classified roads.
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Excellent | 31.1 of 35 | 90% natural land cover within 150 m of shore (84% forest, 5% wetland; 7% developed) |
| Geometric wind exposure | Good | 13.9 of 29 | mean fetch 1,438 m · 0% of sampled water within 500 m of shelter · moderate open-water fetch |
| 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 | 15.0 of 18 | 2 MNRF fishing access points · boat ramp |
| Road isolation | Good | 10.4 of 18 | some nearby classified roads · 29 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
- Low — wide enough that wakes disperse over most 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 — 84% forest and 5% wetland cover within 150 m of shore
- Mapped wildlife habitat
- Mapped — Ontario MNRF has mapped moose aquatic feeding areas 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 →
Angler catch reports
Fish ON-Line · 2017–2025What anglers say they caught here, logged trip by trip in Ontario’s Fish ON-Line app — most recently in July 2025.
Pictures are sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).
All species & trip details8 species
How people fish it: boat 80% · ice 20%
Catch rate: about 1.1 fish an hour, all species together (5 trips, 12 hours logged)
Kept: 62% of the fish reported; the rest were released
About these fish → the Fish of Ontario guide
Cassels Lake — common questions
How deep is Cassels Lake?
The deepest contour on the Ontario MNRF bathymetric survey of Cassels Lake is 30.5 m (100 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 Cassels Lake?
Cassels Lake covers about 751 ha (1,856 acres) in Nipissing District, Ontario.
Is there public access to Cassels Lake?
The Ontario MNRF lists 2 fishing access points within 100 m of the shoreline of Cassels Lake: 2 boat launches. 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.
