Long Lake
66 ft
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Depth scale
Survey readout
Long Lake is mapped to a depth of 20 m (66 ft) on the Ontario MNRF survey and covers about 97 ha (240 acres) in Peterborough County, Ontario. Depths come from the Ontario MNRF survey of 1983.
Measured from the Ontario MNRF bathymetry survey.
- Deepest mapped contour
- 20 m (66 ft)
- Survey year
- 1983
- Surface area
- 97 ha (240 acres)
- Shoreline
- 14.6 km (9.1 mi) · irregular
- Fishing access
- 1 MNRF fishing access point · 1 boat launch
- In
- Kawartha Highlands Signature Site Park · Ontario Parks
Additional depth details10 contours
- Contour depths
- 0–20 m (66 ft)
- Deep-spot markers
- 20 m (66 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
- 44.68852, -78.17509
- MNRF lake ID
- 17-7242-49521
- Vertical exaggeration
- 1.45×
- Basemap
- Ontario FRI
- Model size
- 1.6 MB
Check the source: this lake’s record (17-7242-49521) 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: 1983. This model was built 2026-09-06. Depths between contours are interpolated, not measured.
Paddling
Paddling Index methodology v1.0 · calculated 2026-09-16Long Lake has a heavily wooded and largely undeveloped setting, generally sheltered geometry, limited nearby major-road exposure.
On a canoe route · portages mapped. Portage trails end at this shoreline, including Long L - Buzzard L Portage. Portages carry canoes over land between waters, and the ground around the lake in the 3D view is terrain those trails cross. Trail condition, length and elevation change are not measured here — check the park or canoe-route map before you go. Trails: OpenStreetMap (ODbL).
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Excellent | 32.1 of 35 | 91% natural land cover within 150 m of shore (77% forest, 2% wetland; 2% developed) |
| Geometric wind exposure | Very Good | 24.9 of 29 | mean fetch 642 m · 40% of sampled water within 500 m of shelter · generally short 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 | 1 MNRF fishing access point · boat ramp |
| Road isolation | Very Good | 11.5 of 18 | limited nearby major-road exposure · 10 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 — 77% forest and 2% 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 →
Angler catch reports
Fish ON-Line · 2012–2026What anglers say they caught here, logged trip by trip in Ontario’s Fish ON-Line app — most recently in August 2026.
Pictures are sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).
How people fish it: boat 88% · ice 12%
Catch rate: about 1.5 fish an hour, all species together (8 trips, 37 hours logged)
Kept: 20% of the fish reported; the rest were released
About these fish → the Fish of Ontario guide
Long Lake — common questions
How deep is Long Lake?
The deepest contour on the Ontario MNRF bathymetric survey of Long Lake is 20 m (66 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 Long Lake?
Long Lake covers about 97 ha (240 acres) in Peterborough County, Ontario.
Is there public access to Long Lake?
The Ontario MNRF lists 1 fishing access point within 100 m of the shoreline of Long Lake: 1 boat launch. 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.
