Map/Lakes/Southern & Central Ontario
Alder Lake
Surface area
67 ac27 ha
Water type
Warm-water
Mgmt zone
FMZ 15
Shoreline
1.9 mi3.0 km
Nearest road
0.4 miWEST EELS LAKE ROAD
Depth map
Available
Alder Lake is the 1455th-largest of 4,097 named lakes in Southern & Central Ontario, with 1.9 miles of charted shoreline.
Fish species
From MNRF aquatic resource surveys.
Also present: Pumpkinseed, Rock Bass, 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 15
| Species | Season | Sport licence | Conservation |
|---|---|---|---|
| Largemouth and Smallmouth Bass or any combination | 4th Sat. in June - Nov. 30 | S - 6 | C - 2 |
| Walleye and Sauger or any combination | Jan. 1 - Mar. 15 & 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 15 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 |
|---|---|---|---|
| Smallmouth Bass | 2–4 | Do not eat | Mercury |
| Walleye | 2 | 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.
- Mackavoy Lake6 shared species · 67 ac
- Wilcox Lake6 shared species · 65 ac
- Lake Seneca6 shared species · 64 ac
- Jacks Lake6 shared species · 64 ac
- Minden Lake6 shared species · 77 ac
Nearby lakes
- Eels Lake2.2 mi · species data
- Clanricarde Lake2.3 mi · species data
- Little Anstruther Lake3.0 mi · species data
- Monmouth Lake3.7 mi · species data
- Charles Lake4.1 mi · species data
- Serpentine Lake5.0 mi · species data