Grassy Lake
Surface area
162 ac65 ha
Water type
Cool-water
Mgmt zone
FMZ 10
Shoreline
3.8 mi6.1 km
Nearest road
RoadsideHIGHWAY 17
Depth map
None on file
Grassy Lake is the 1310th-largest of 5,104 named lakes in Algoma Country, with 3.8 miles of charted shoreline.
Fish species
From MNRF aquatic resource surveys.
Also present: Bluntnose Minnow, Brown Bullhead, Common Shiner, Emerald Shiner, Golden Shiner, Logperch, Pumpkinseed, Rock Bass, Shorthead Redhorse, Silver Redhorse, White Perch
Lodges & operators0
No operators recorded on this lake yet. Know one? It may be listed under a nearby community — browse the map.
Seasons & limitsFMZ 10
Lake-specific regulations
- Extended opportunity on this water — Largemouth and Smallmouth Bass or any combination: Open all year · Refer to Zone-Wide Seasons and Limits (All waters north of Highway 17 and all waters west of where the east bank of the Serpent River crosses Highway 17.)
| Species | Season | Sport licence | Conservation |
|---|---|---|---|
| Largemouth and Smallmouth Bass or any combination | 3rd Saturday in June - November 30 | S - 6 | C - 3 |
| Northern Pike | Open all year | S-6; not more than 1 greater than 61 cm, none greater than 86 cm | C-2; none greater than 61 cm |
| Walleye and Sauger or any combination | January 1 to the third Sunday in March and third Saturday in May to December 31 | S - 4, none greater than 46 cm | C - 2, none greater than 46 cm |
| 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 10 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 |
|---|---|---|---|
| Brown Bullhead | 32 | 12–16 | Mercury |
| Northern Pike | 4–16 | 0–8 | Mercury |
| Redhorse Sucker | 12–32 | 4–16 | Mercury |
| Smallmouth Bass | 4–16 | 0–8 | Mercury |
| Walleye | 12–32 | 4–12 | 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.
- Rock Lake13 shared species · 2,577 ac
- Wabagishik Lake12 shared species · 1,424 ac
- Bear Lake12 shared species · 1,710 ac
- Echo Lake12 shared species · 2,896 ac
- Bright Lake12 shared species · 2,996 ac
Nearby lakes
- Lizard Lake1.6 mi · species data
- Lizard Lake1.8 mi · species data
- West Mink Lake1.8 mi · species data
- Lillie Lake2.6 mi · species data
- Camp Lake2.6 mi · species data
- Canoe Lake4.3 mi · species data