Map/Lakes/Northeastern Ontario
Upper Bass Lake
Surface area
305 ac123 ha
Max depth
128 ft39 m
Mean depth
23 ft7.1 m
Water type
Cold-water
Mgmt zone
FMZ 11
Shoreline
7.6 mi12 km
Nearest road
Roadside
Depth map
Available
Upper Bass Lake is the 460th-largest of 4,179 named lakes in Northeastern Ontario, with 7.6 miles of charted shoreline and 7 islands. Its 128 ft maximum depth is greater than 94% of depth-surveyed lakes in the region.
Fish species
From MNRF aquatic resource surveys.
Also present: Cisco, Golden Shiner, Pumpkinseed, Rock Bass, Spottail Shiner, White Sucker
Lodges & operators0
No operators recorded on this lake yet. Know one? It may be listed under a nearby community — browse the map.
Seasons & limitsFMZ 11
| Species | Season | Sport licence | Conservation |
|---|---|---|---|
| Lake Trout | February 15 to third Sunday in March and third Saturday in May to Labour Day | S-2; not more than 1 greater than 40 cm | C - 1 |
| Largemouth and Smallmouth Bass or any combination | January 1 to third Sunday in March and third Saturday in May to December 31 | S - 6 | C - 2 |
| Northern Pike | Jan. 1 - 3rd Sun. in Mar. & 3rd Sat. in May - Dec. 31 | S - 6, not more than 2 greater than 61 cm (24 in.), of which not more than 1 is greater than 86 cm (33.9 in.) | C - 2, not more than 1 greater than 61 cm (24 in.), none greater than 86 cm (33.9 in.) |
| Yellow Perch | Open all year | S - 50 | C - 25 |
Compiled from MNRF Recreational Fishing Regulations open data (2026 season, zone-wide rules shown for this lake's species). Regulations change by variation order — confirm with the official FMZ 11 summary before you fish.
Consumption advisories
Recommended meals per month from Ontario's fish contaminant monitoring — ranges span the tested fish sizes.
| Species | General | Sensitive* | Cause |
|---|---|---|---|
| Lake Trout | 4 | Do not eat | Mercury |
| Northern Pike | Do not eat | Do not eat | Mercury |
| Smallmouth Bass | 4 | Do not eat | Mercury |
*Women of child-bearing age and children under 15. Compiled from the MECP Guide to Eating Ontario Fish (2025 guide) — check the guide for size-specific advice before keeping fish.
Similar water
Same region, overlapping species, comparable size.
- Anvil Lake10 shared species · 533 ac
- Hangstone Lake10 shared species · 838 ac
- Kokoko Lake10 shared species · 1,359 ac
- Wahwashkesh Lake10 shared species · 4,415 ac
- Trout Lake10 shared species · 4,678 ac
Nearby lakes
- Obabika Lake2.1 mi · species data
- Allan Lake1.7 mi · species data
- Lower Bass Lake2.4 mi · species data
- Rachel Lake4.2 mi · species data
- Clearwater Lake3.4 mi · species data
- Cummings Lake4.7 mi · species data