Stocked

FMZ 10 · Morgan · Sudbury District

Irwin Lake

Irwin Lake (FMZ 10) was last stocked in 2025 with 400 Brook Trout yearlings.

Records here go back to 1974: 21 stocking events in total.

In the sweet spot

Brook Trout stocked here in 2021–2023 should be a good size now. See other brook trout lakes in Zone 10 worth fishing.

Fish stocked per yearShaded years 2021–2023: those fish should be catchable size now
201620172018: 600 Brook Trout600201820192020: 400 Brook Trout4002020202120222023: 250 Brook Trout250202320242025: 400 Brook Trout40020252026
  • Brook Trout

By species

  • Brook TroutIn the sweet spot
    Last stocked
    2025
    Stocked 2021–2023
    250
    Last 10 yrs
    1,650

    Significant stockings 3–5 years ago. Those fish should be a good size now.

Stocking history

YearSpeciesStageFishNotes
2025Brook Troutyearlings400
2023Brook Troutyearlings250
2020Brook Troutyearlings400
2018Brook Troutyearlings600
Older records (17 stockings, 1974–2015)
DateSpeciesStageFishStrain / purpose
2015-05-15Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2011-05-09Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2009-05-13Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2006-05-10Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2005-05-10Brook Troutyearlings450L. Nipigon x Hills L. · Put-Grow-and Take
2003-05-22Brook Troutyearlings325L. Nipigon x Hills L. · Put-Grow-and Take
2002-05-24Brook Troutyearlings375L. Nipigon x Hills L. · Put-Grow-and Take
2001-05-14Brook Troutyearlings375L. Nipigon x Hills L. · Put-Grow-and Take
2000-05-09Brook Troutyearlings375L. Nipigon x Hills L. · Put-Grow-and Take
1999-05-11Brook Troutyearlings250L. Nipigon x Hills L. · Put-Grow-and Take
1998-05-19Brook Troutyearlings250Lake Nipigon (HLC) · Put-Grow-and Take
1996-05-17Brook Troutyearlings500Lake Nipigon (HLC) · Put-Grow-and Take
1994-05-17Brook Troutyearlings500Put-Grow-and Take
1993-05-20Brook Troutyearlings500Put-Grow-and Take
1981-05-15Brook Troutyearlings1,000Put-and-Take
1978-05-23Brook Troutyearlings1,500Put-Grow-and Take
1974-05-22Brook Troutyearlings500

Recent records (2016 on) are year-only; MNRF does not publish stocking dates. Historical records (to 2015) include dates and strain.

Where it is

46.6769, -81.2584 · Open in OpenStreetMap