Calstock Lake
Calstock Lake is the 555th-largest of 801 named lakes in Hearst–Kapuskasing, with 1.6 miles of charted shoreline.
On this water
Lodges & operators 0
No operators recorded on this lake yet. Know one? It may be listed under a nearby community — browse the map.
2026 regulations
Seasons & limitsFMZ 7
- Special limit on this water — Lake Sturgeon: Jan. 1 - Apr. 30 & July 1 - Dec. 31 · S - 0 · C - 0 (All waters located within the portion of Zone 7 north of Hwy. 11 and east of Hwy. 584.)
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.
Eating what you catch
Consumption advisories
Recommended meals per month from Ontario's fish contaminant monitoring — ranges span the tested fish sizes.
| Species | General | Sensitive* |
|---|---|---|
| Lake Whitefish | 16–32 | 8–16 |
| White Sucker | 32 | 12–16 |
Advisory cause across all species: 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.
Around this water