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Western Manitoba

Gass Lake

StockedBrook Trout

About this lake

A Porcupine Hills brook trout water west of North Steeprock Lake, listed as a stocked trout water in the Angler's Guide. The province has stocked brook trout fingerlings here. It is remote forest country, so pair it with a North Steeprock trip for a full day.

🏆 Trophy catches

The biggest documented fish caught here, from the Manitoba Master Angler record book.

23.5″ Brook Trout

Orest Woloshyn · February 08, 1997

59.7 cm

23.5″ Brook TroutReleased

Frank A. Foidart · June 26, 1996

59.7 cm

23.5″ Tiger TroutReleased

Calvin Boscow · October 16, 2012

59.7 cm

23″ Rainbow Trout

Michelle Gogol · September 21, 2008

58.4 cm

22.75″ Brook TroutReleased

Frank A. Foidart · June 26, 1996

57.8 cm

22″ Rainbow TroutReleased

Terry Dewarle · November 22, 1992

55.9 cm

21.5″ Rainbow Trout

Darin Hubscher · October 02, 2007

54.6 cm

20.87″ Tiger TroutReleased

Brock Koutecky · May 22, 2018

53.0 cm

20.75″ Tiger Trout

Kris Giles · December 02, 2017

52.7 cm

Source: Manitoba Master Angler record book (anglers.travelmanitoba.com)

Where it is

📍 Gass Lake · Western

2026 Manitoba Anglers' Guide

Fishing regulations

Southern Division

Special rules for this waterbody

Stocked trout water (Porcupine Forest).

None of this lake's species have their own row below, so here are the division's general limits instead.

Walleye (Pickerel) & Sauger (either or combined)

Limit
4
Size
None may exceed 55 cm
Season
Southern Division: closed April 6, 2026 to May 8, 2026; open May 9, 2026 to April 4, 2027. Northwest Division: closed May 1 to May 15, 2026; open May 16, 2026 to April 30, 2027. North Central Division: closed May 1 to May 15, 2026; open May 16, 2026 to April 30, 2027. Northeast Division: generally open all year (waterbody-specific closures apply). Lake Winnipeg: walleye/sauger closed April 6 to May 15, 2026.

Northern Pike (Jackfish)

Limit
4
Size
None may exceed 75 cm
Season
Open year-round (all divisions; waterbody-specific closures apply)

Lake Trout

Limit
1
Size
None may exceed 65 cm
Season
Southern Division: closed September 15 to October 31, 2026; open November 1, 2026 to September 14, 2027. New 2026 rule: Area A (eastern Manitoba) — all lake trout over 55 cm must be released. Northwest/North Central: generally open year-round per general limits (check waterbody-specific closures).

Channel Catfish

Limit
4
Size
None may exceed 60 cm
Season
Open year-round (all divisions; waterbody-specific closures apply)

Smallmouth Bass

Limit
4
Size
None may exceed 45 cm
Season
Open year-round (all divisions; waterbody-specific closures apply)

Yellow Perch

Limit
25
Size
No size restriction (provincially)
Season
Open year-round (all divisions; waterbody-specific closures apply)

Lake Sturgeon

Limit
0
Size
N/A (zero limit)
Season
Southern Division: closed May 1 to June 15; open June 16 to April 30. Northwest and North Central Divisions: closed May 1 to June 30; open July 1 to April 30. Conservation closures on the Winnipeg River and Nelson River systems remain in place.

Largemouth Bass

Limit
4 (province-wide, excluding Mary Jane Reservoir)
Size
None may exceed 45 cm (province-wide)
Season
Open year-round (all divisions; waterbody-specific closures apply)

Source: 2026 Manitoba Anglers' Guide (gov.mb.ca/nrnd/fish-wildlife/pubs/fish_wildlife/fish/angling-guide.pdf), Waterbody Specific Regulations pp. 18-23. Summaries only — confirm in the official guide.

Stocking history

Brook TroutKokaneeRainbow TroutSparrTiger Trout

Oct 5, 2023

Tiger Trout · 12-15 cm

3,000

Oct 18, 2021

Tiger Trout · 12-15 cm

3,000

Oct 4, 2018

Tiger Trout · 12-15 cm

2,000

Jun 5, 2017

Rainbow Trout · 18+ cm

800

Jun 5, 2017

Tiger Trout · 18+ cm

1,900

Oct 11, 2016

Tiger Trout · 12-15 cm

2,000

Sep 16, 2015

Tiger Trout · 12-15 cm

2,000

Sep 30, 2010

Tiger Trout · 12-15 cm

2,000

Sep 14, 2009

Rainbow Trout · Fingerling

3,000

May 24, 2006

Rainbow Trout · 18+ cm

1,500

Oct 15, 2001

Brook Trout · 12-15 cm

1,250

Oct 15, 2001

Sparr · 12-15 cm

2,000

Oct 17, 1996

Brook Trout · Fingerling

10,000

Oct 4, 1995

Brook Trout · 12-15 cm

5,000

Jul 10, 1984

Brook Trout · >1 year

1,000

Jun 24, 1983

Rainbow Trout · >1 year

1,000

Jul 22, 1981

Brook Trout · Fingerling

35,000

Jul 22, 1981

Rainbow Trout · >1 year

1,000

Jun 16, 1979

Rainbow Trout · >1 year

1,000

Jul 15, 1975

Rainbow Trout · >1 year

3,000

Jul 3, 1973

Rainbow Trout · >1 year

2,000

—

Rainbow Trout · >1 year

1,000

—

Kokanee · Fry

10,000

—

Rainbow Trout · >1 year

2,200

—

Rainbow Trout · >1 year

1,000

25 stocking events · Source: Manitoba Waterbody Stocking Records, Manitoba Wildlife and Fisheries Branch (open.canada.ca)