Hammer Lake
Surface area
993 ac402 ha
Max depth
39 ft11.9 m
Mean depth
12 ft3.6 m
Water type
Cool-water
Mgmt zone
FMZ 7
Shoreline
18 mi28 km
Boat launch
3 mappedLIO access points
Nearest road
RoadsideHIGHWAY 17
Depth map
Available
Hammer Lake is the 189th-largest of 5,104 named lakes in Algoma Country, with 18 miles of charted shoreline and 13 islands. Its 39 ft maximum depth is greater than 31% of depth-surveyed lakes in the region.
Fish species
From MNRF aquatic resource surveys.
Also present: Burbot, 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 7
| Species | Season | Sport licence | Conservation |
|---|---|---|---|
| Northern Pike | Open all year | 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 - Apr. 14 & 3rd Sat. in May - Dec. 31 | S - 4, not more than 1 greater than 46 cm (18.1 in.) | C - 2, not more than 1 greater than 46 cm (18.1 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 7 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 |
|---|---|---|---|
| Walleye | 8–16 | 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.
- Lang Lake6 shared species · 966 ac
- Ottertail Lake6 shared species · 1,102 ac
- Walker Lake6 shared species · 871 ac
- Shikwamkwa Lake6 shared species · 1,289 ac
- Carty Lake6 shared species · 1,396 ac
Nearby lakes
- South Hammer Lake1.7 mi · species data
- Marion Lake2.5 mi · species data
- McQuown Lake2.9 mi · species data
- Obatanga Lake4.6 mi · species data
- Saniga Lake4.7 mi · species data
- Parkinson's Pothole4.4 mi · species data