About this lake
A small lake north of Rossburn on PR 577, Rossman Lake is a stocked walleye water under the southwestern walleye regulations. It is a quiet prairie lake for local anglers rather than a destination fishery. Fish it as part of a swing through the smaller walleye waters west of Riding Mountain.
🏆 Trophy catches
The biggest documented fish caught here, from the Manitoba Master Angler record book.
42.5″ Northern Pike
Ed Zimmerman · September 11, 2006
108.0 cm
42.5″ Northern Pike
Frances Kostesky · June 23, 1996
108.0 cm
30.5″ WalleyeReleased
Kumblay Thiessen · June 28, 2025
77.5 cm
30″ WalleyeReleased
Randy Berrington · May 25, 2025
76.2 cm
29.5″ Walleye
Brodie Dunn · June 26, 2014
74.9 cm
Source: Manitoba Master Angler record book (anglers.travelmanitoba.com)
Where it is
📍 Rossman Lake · Southern
2026 Manitoba Anglers' Guide
Fishing regulations
Southern Division (best match — confirm in the guide)
No waterbody-specific rules listed — general Southern Division limits 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.
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
May 19, 2025
Walleye · Fry
300,000
May 16, 2024
Walleye · Fry
300,000
May 24, 2023
Walleye · Fry
100,000
Jun 27, 2022
Walleye · Fry
100,000
May 21, 2021
Walleye · Fry
400,000
May 23, 2020
Walleye · Fry
500,000
May 28, 2019
Walleye · Fry
500,000
May 24, 2018
Walleye · Fry
200,000
May 21, 2017
Walleye · Fry
500,000
May 20, 2016
Walleye · Fry
500,000
May 20, 2015
Walleye · Fry
600,000
May 29, 2014
Walleye · Fry
600,000
May 29, 2013
Walleye · Fry
100,000
May 14, 2012
Walleye · Fry
400,000
May 23, 2011
Walleye · Fry
300,000
May 12, 2010
Walleye · Fry
200,000
May 25, 2009
Walleye · Fry
200,000
May 27, 2008
Walleye · Fry
600,000
May 17, 2007
Walleye · Fry
300,000
May 13, 2006
Walleye · Fry
200,000
May 19, 2005
Walleye · Fry
300,000
May 28, 2004
Walleye · Fry
400,000
May 20, 2003
Walleye · Fry
600,000
May 30, 2002
Walleye · Fry
200,000
May 9, 2000
Walleye · Fry
300,000
May 19, 1999
Walleye · Fry
200,000
Oct 20, 1998
Brown Trout · 12-15 cm
14,000
Oct 13, 1998
Brown Trout · 12-15 cm
16,500
May 14, 1998
Walleye · Fry
400,000
Jun 2, 1997
Walleye · Fry
350,000
Jun 1, 1996
Walleye · Fry
400,000
May 25, 1995
Walleye · Fry
1,000,000
Jun 16, 1994
Brown Trout · 12-15 cm
10,000
May 25, 1994
Walleye · Fry
1,200,000
May 16, 1993
Walleye · Fry
400,000
May 12, 1980
Walleye · Fry
50,000
Nov 16, 1979
Walleye · Fingerling
210
May 30, 1979
Walleye · Fry
50,000
May 28, 1974
Walleye · Fry
200,000
—
Walleye · Fry
1,000,000
—
Walleye · Fry
200,000
—
Walleye · Fry
100,000
—
Walleye · Fry
100,000
—
Walleye · Fingerling
1,513
—
Walleye · Fingerling
7,865
—
Northern Pike · 0
293
—
Walleye · Fry
200,000
—
Walleye · Fry
100,000
—
Walleye · Fry
100,000
49 stocking events · Source: Manitoba Waterbody Stocking Records, Manitoba Wildlife and Fisheries Branch (open.canada.ca)