Manitoba · Canada
William Lake
One of southern Manitoba's few smallmouth bass lakes, William Lake sits in Turtle Mountain Provincial Park south of Boissevain. The province's angling guide gives it a special smallmouth limit, and it is also listed as a stocked trout water with brown trout present. It is a scenic, small-boat lake where bass are the main draw and perch and trout round out the day.
- Region
- Manitoba, Canada
- Nearest community
- Boissevain
- Regulation zone
- Southern Division
Species in William Lake
Tap a species for Bump Board's full tactics guide.
Also stocked
Seasons & limits — Southern Division
| Species | Season | Limit | Notes |
|---|---|---|---|
| Smallmouth Bass | Open year-round (all divisions; waterbody-specific closures apply) | 4 | None may exceed 45 cm |
| Yellow Perch | Open year-round (all divisions; waterbody-specific closures apply) | 25 | No size restriction (provincially) |
Always confirm regulations with the official provincial guide before fishing — rules change, and waterbody-specific exceptions apply.
Waterbody-specific rules
- Smallmouth bass limit 2; only 1 may exceed 40 cm.
Manitoba Master Angler qualifying sizes
- Smallmouth Bass — minimum 46 cm (18 in)
- Yellow Perch — minimum 33 cm (13 in)
- Brown Trout — minimum 51 cm (20 in)
- Brook Trout — minimum 51 cm (20 in)
- Brown Trout — minimum 51 cm (20 in)
- Lake Whitefish — minimum 56 cm (22 in)
- Rainbow Trout — minimum 51 cm (20 in)
- Smallmouth Bass — minimum 46 cm (18 in)
- Walleye — minimum 71 cm (28 in)
From the Manitoba Master Angler Program (Travel Manitoba).
More Manitoba lakes
Species & regulations: 2026 Manitoba Anglers' Guide, via the Bump Board dataset.