Map/Lakes/Northeastern Ontario
Opechee Lake
Surface area
397 ac160 ha
Max depth
32 ft9.75 m
Mean depth
11 ft3.3 m
Water type
Warm-water
Mgmt zone
FMZ 11
Shoreline
7.5 mi12 km
Nearest road
Roadside
Depth map
Available
Opechee Lake is the 361st-largest of 4,179 named lakes in Northeastern Ontario, with 7.5 miles of charted shoreline and 1 island. Its 32 ft maximum depth is greater than 37% of depth-surveyed lakes in the region.
Fish species
From MNRF aquatic resource surveys.
Also present: 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 |
|---|---|---|---|
| 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.) |
| Walleye and Sauger or any combination | Jan. 1 - 3rd Sun. in Mar. & 3rd Sat. in May - Dec. 31 | S - 4, none between 43 - 60 cm (16.9 - 23.6 in.), not more than 1 greater than 60 cm (23.6 in.) | C - 2, none between 43 - 60 cm (16.9 - 23.6 in.), not more than 1 greater than 60 cm (23.6 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 |
|---|---|---|---|
| Northern Pike | 4 | Do not eat | Mercury |
| Smallmouth Bass | 4–12 | 0–4 | Mercury |
| Walleye | 4–32 | 0–12 | 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.
- Olive Lake5 shared species · 392 ac
- Aileen Lake5 shared species · 390 ac
- Mackenzie Lake5 shared species · 427 ac
- Seagull Lake5 shared species · 433 ac
- Gull Lake5 shared species · 436 ac
Nearby lakes
- Opechee Boys Lake0.9 mi · species data
- Pozniak Lake0.9 mi · species data
- Frawley Lake2.2 mi · species data
- Marian Lake1.8 mi · species data
- Olive Lake2.4 mi · species data
- Belanger Lake2.9 mi · species data