Western Manitoba

Patterson Lake

About this lake

A FLIPPR stillwater trout factory on the south side of Riding Mountain, known worldwide for giant rainbows and browns. The aerated, electric-motor-only lake fishes best right after ice-out and again in late September and October, when all-day bites of trophy browns in the 20-25 inch range are not uncommon. Overnight camping is available on the lake.

Size: 158.5 ha

Max depth: 8.8 m

🏆 Trophy catches

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

28.7″ Brown TroutReleased

Keith Howell · May 09, 2023

72.9 cm

28.5″ Rainbow TroutReleased

Gary Mourhess · September 29, 2014

72.4 cm

28.25″ Brown TroutReleased

Connor Ward-Merkl · December 26, 2021

71.8 cm

27.75″ Rainbow TroutReleased

Scott Strizic · April 15, 2013

70.5 cm

27.25″ Rainbow TroutReleased

Dean McCulloch · December 03, 2012

69.2 cm

27″ Brown TroutReleased

Barry Penner · April 06, 2022

68.6 cm

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

2026 Manitoba Anglers' Guide

Fishing regulations

Southern Division

Special rules for this waterbody

Trout limit 1; all trout over 45 cm must be released; artificial lures/flies only.

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

Species	Possession limit	Size restriction	Season
Walleye (Pickerel) & Sauger (either or combined)	4	None may exceed 55 cm	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)	4	None may exceed 75 cm	Open year-round (all divisions; waterbody-specific closures apply)
Lake Trout	1	None may exceed 65 cm	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	4	None may exceed 60 cm	Open year-round (all divisions; waterbody-specific closures apply)
Smallmouth Bass	4	None may exceed 45 cm	Open year-round (all divisions; waterbody-specific closures apply)
Yellow Perch	25	No size restriction (provincially)	Open year-round (all divisions; waterbody-specific closures apply)
Lake Sturgeon	0	N/A (zero limit)	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	4 (province-wide, excluding Mary Jane Reservoir)	None may exceed 45 cm (province-wide)	Open year-round (all divisions; waterbody-specific closures apply)

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

Brown TroutRainbow TroutYellow Perch

Date	Species	Size	Quantity
Oct 1, 2024	Brown Trout	12-15 cm	5,000
Oct 1, 2024	Rainbow Trout	12-15 cm	5,000
Jun 12, 2024	Rainbow Trout	18+ cm	5,000
May 27, 2024	Brown Trout	18+ cm	3,000
Sep 28, 2023	Brown Trout	12-15 cm	6,000
Sep 28, 2023	Rainbow Trout	12-15 cm	6,000
May 29, 2023	Brown Trout	18+ cm	5,000
May 29, 2023	Brown Trout	18+ cm	5,000
May 29, 2023	Rainbow Trout	18+ cm	5,000
Sep 14, 2022	Brown Trout	12-15 cm	10,000
Sep 14, 2022	Rainbow Trout	12-15 cm	10,000
Sep 16, 2021	Brown Trout	12-15 cm	5,000
Sep 16, 2021	Rainbow Trout	12-15 cm	5,000
May 5, 2021	Brown Trout	18+ cm	4,000
Apr 28, 2021	Rainbow Trout	18+ cm	4,000
Oct 5, 2020	Rainbow Trout	12-15 cm	6,000
Oct 2, 2020	Brown Trout	12-15 cm	10,000
May 27, 2020	Brown Trout	18+ cm	4,000
May 6, 2020	Rainbow Trout	18+ cm	4,000
Sep 6, 2019	Brown Trout	12-15 cm	4,500
Sep 6, 2019	Rainbow Trout	12-15 cm	4,500
May 29, 2019	Brown Trout	18+ cm	4,000
May 1, 2019	Brown Trout	18+ cm	3,000
May 1, 2019	Rainbow Trout	18+ cm	4,000
Oct 2, 2018	Brown Trout	12-15 cm	4,500
Oct 2, 2018	Rainbow Trout	12-15 cm	4,500
Jun 26, 2018	Rainbow Trout	18+ cm	2,000
May 24, 2018	Brown Trout	18+ cm	4,000
May 4, 2018	Rainbow Trout	18+ cm	2,500
Oct 11, 2017	Brown Trout	12-15 cm	14,000
Oct 11, 2017	Rainbow Trout	12-15 cm	14,000
Jun 22, 2017	Rainbow Trout	18+ cm	2,000
Oct 19, 2016	Brown Trout	12-15 cm	7,000
Oct 5, 2016	Rainbow Trout	12-15 cm	18,000
Sep 18, 2015	Brown Trout	12-15 cm	18,000
Sep 18, 2015	Rainbow Trout	12-15 cm	9,000
Sep 17, 2014	Brown Trout	12-15 cm	16,000
Sep 12, 2014	Rainbow Trout	12-15 cm	16,000
Oct 16, 2013	Rainbow Trout	12-15 cm	25,000
Oct 15, 2013	Brown Trout	12-15 cm	10,000
Oct 16, 2012	Brown Trout	12-15 cm	10,000
Oct 2, 2012	Rainbow Trout	12-15 cm	10,000
May 25, 2012	Brown Trout	12-15 cm	6,000
Oct 4, 2011	Rainbow Trout	Fingerling	10,000
Oct 7, 2010	Brown Trout	Fingerling	3,000
Oct 7, 2010	Rainbow Trout	Fingerling	10,000
Sep 8, 2010	Brown Trout	Fingerling	6,750
Oct 19, 2009	Brown Trout	12-15 cm	10,000
Oct 19, 2009	Rainbow Trout	Fingerling	4,000
Oct 8, 2009	Rainbow Trout	Fingerling	11,000
Nov 4, 2008	Brown Trout	12-15 cm	13,000
Nov 4, 2008	Rainbow Trout	12-15 cm	13,000
Sep 19, 2007	Brown Trout	12-15 cm	10,000
Sep 19, 2007	Rainbow Trout	12-15 cm	10,000
Oct 5, 2006	Brown Trout	12-15 cm	4,240
Oct 5, 2006	Rainbow Trout	12-15 cm	3,000
Sep 28, 2006	Brown Trout	12-15 cm	5,760
Sep 28, 2006	Rainbow Trout	12-15 cm	10,000
Jun 8, 2006	Brown Trout	18+ cm	1,000
Jun 8, 2006	Rainbow Trout	18+ cm	1,000
Sep 28, 2005	Brown Trout	12-15 cm	17,500
Sep 26, 2005	Rainbow Trout	12-15 cm	15,000
Oct 14, 2004	Rainbow Trout	12-15 cm	8,600
Sep 30, 2004	Brown Trout	12-15 cm	15,000
May 29, 2004	Brown Trout	Adult (>30 cm)	1,600
May 25, 2004	Rainbow Trout	12-15 cm	1,000
Apr 27, 2004	Rainbow Trout	18+ cm	5,400
Oct 8, 2003	Rainbow Trout	Fingerling	10,000
Oct 3, 2003	Brown Trout	12-15 cm	10,000
Oct 3, 2003	Rainbow Trout	12-15 cm	10,000
May 21, 2003	Rainbow Trout	Adult (>30 cm)	50
Jan 1, 2003	Rainbow Trout	12-15 cm	1,000
Sep 30, 2002	Brown Trout	12-15 cm	10,000
Sep 30, 2002	Rainbow Trout	12-15 cm	5,000
Sep 27, 2002	Rainbow Trout	18+ cm	2,800
May 16, 2002	Brown Trout	12-15 cm	3,500
—	Yellow Perch	Adult (>30 cm)	740
—	Yellow Perch	Adult (>30 cm)	600

Oct 1, 2024

Brown Trout · 12-15 cm

5,000

Oct 1, 2024

Rainbow Trout · 12-15 cm

5,000

Jun 12, 2024

Rainbow Trout · 18+ cm

5,000

May 27, 2024

Brown Trout · 18+ cm

3,000

Sep 28, 2023

Brown Trout · 12-15 cm

6,000

Sep 28, 2023

Rainbow Trout · 12-15 cm

6,000

May 29, 2023

Brown Trout · 18+ cm

5,000

May 29, 2023

Brown Trout · 18+ cm

5,000

May 29, 2023

Rainbow Trout · 18+ cm

5,000

Sep 14, 2022

Brown Trout · 12-15 cm

10,000

Sep 14, 2022

Rainbow Trout · 12-15 cm

10,000

Sep 16, 2021

Brown Trout · 12-15 cm

5,000

Sep 16, 2021

Rainbow Trout · 12-15 cm

5,000

May 5, 2021

Brown Trout · 18+ cm

4,000

Apr 28, 2021

Rainbow Trout · 18+ cm

4,000

Oct 5, 2020

Rainbow Trout · 12-15 cm

6,000

Oct 2, 2020

Brown Trout · 12-15 cm

10,000

May 27, 2020

Brown Trout · 18+ cm

4,000

May 6, 2020

Rainbow Trout · 18+ cm

4,000

Sep 6, 2019

Brown Trout · 12-15 cm

4,500

Sep 6, 2019

Rainbow Trout · 12-15 cm

4,500

May 29, 2019

Brown Trout · 18+ cm

4,000

May 1, 2019

Brown Trout · 18+ cm

3,000

May 1, 2019

Rainbow Trout · 18+ cm

4,000

Oct 2, 2018

Brown Trout · 12-15 cm

4,500

Oct 2, 2018

Rainbow Trout · 12-15 cm

4,500

Jun 26, 2018

Rainbow Trout · 18+ cm

2,000

May 24, 2018

Brown Trout · 18+ cm

4,000

May 4, 2018

Rainbow Trout · 18+ cm

2,500

Oct 11, 2017

Brown Trout · 12-15 cm

14,000

Oct 11, 2017

Rainbow Trout · 12-15 cm

14,000

Jun 22, 2017

Rainbow Trout · 18+ cm

2,000

Oct 19, 2016

Brown Trout · 12-15 cm

7,000

Oct 5, 2016

Rainbow Trout · 12-15 cm

18,000

Sep 18, 2015

Brown Trout · 12-15 cm

18,000

Sep 18, 2015

Rainbow Trout · 12-15 cm

9,000

Sep 17, 2014

Brown Trout · 12-15 cm

16,000

Sep 12, 2014

Rainbow Trout · 12-15 cm

16,000

Oct 16, 2013

Rainbow Trout · 12-15 cm

25,000

Oct 15, 2013

Brown Trout · 12-15 cm

10,000

Oct 16, 2012

Brown Trout · 12-15 cm

10,000

Oct 2, 2012

Rainbow Trout · 12-15 cm

10,000

May 25, 2012

Brown Trout · 12-15 cm

6,000

Oct 4, 2011

Rainbow Trout · Fingerling

10,000

Oct 7, 2010

Brown Trout · Fingerling

3,000

Oct 7, 2010

Rainbow Trout · Fingerling

10,000

Sep 8, 2010

Brown Trout · Fingerling

6,750

Oct 19, 2009

Brown Trout · 12-15 cm

10,000

Oct 19, 2009

Rainbow Trout · Fingerling

4,000

Oct 8, 2009

Rainbow Trout · Fingerling

11,000

Nov 4, 2008

Brown Trout · 12-15 cm

13,000

Nov 4, 2008

Rainbow Trout · 12-15 cm

13,000

Sep 19, 2007

Brown Trout · 12-15 cm

10,000

Sep 19, 2007

Rainbow Trout · 12-15 cm

10,000

Oct 5, 2006

Brown Trout · 12-15 cm

4,240

Oct 5, 2006

Rainbow Trout · 12-15 cm

3,000

Sep 28, 2006

Brown Trout · 12-15 cm

5,760

Sep 28, 2006

Rainbow Trout · 12-15 cm

10,000

Jun 8, 2006

Brown Trout · 18+ cm

1,000

Jun 8, 2006

Rainbow Trout · 18+ cm

1,000

Sep 28, 2005

Brown Trout · 12-15 cm

17,500

Sep 26, 2005

Rainbow Trout · 12-15 cm

15,000

Oct 14, 2004

Rainbow Trout · 12-15 cm

8,600

Sep 30, 2004

Brown Trout · 12-15 cm

15,000

May 29, 2004

Brown Trout · Adult (>30 cm)

1,600

May 25, 2004

Rainbow Trout · 12-15 cm

1,000

Apr 27, 2004

Rainbow Trout · 18+ cm

5,400

Oct 8, 2003

Rainbow Trout · Fingerling

10,000

Oct 3, 2003

Brown Trout · 12-15 cm

10,000

Oct 3, 2003

Rainbow Trout · 12-15 cm

10,000

May 21, 2003

Rainbow Trout · Adult (>30 cm)

Jan 1, 2003

Rainbow Trout · 12-15 cm

1,000

Sep 30, 2002

Brown Trout · 12-15 cm

10,000

Sep 30, 2002

Rainbow Trout · 12-15 cm

5,000

Sep 27, 2002

Rainbow Trout · 18+ cm

2,800

May 16, 2002

Brown Trout · 12-15 cm

3,500

—

Yellow Perch · Adult (>30 cm)

740

—

Yellow Perch · Adult (>30 cm)

600

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