Stocked

FMZ 7 · Abraham · Chapleau Wawa District

O'Brien Lakes

O'Brien Lakes (FMZ 7) was last stocked in 2025 with 500 Brook Trout yearlings.

Records here go back to 1963: 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 7 worth fishing.

Fish stocked per yearShaded years 2021–2023: those fish should be catchable size now
2016201720182019: 500 Brook Trout500201920202021: 450 Brook Trout45020212022202320242025: 500 Brook Trout50020252026
  • Brook Trout

By species

  • Brook TroutIn the sweet spot
    Last stocked
    2025
    Stocked 2021–2023
    450
    Last 10 yrs
    1,450

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

Stocking history

YearSpeciesStageFishNotes
2025Brook Troutyearlings500
2021Brook Troutyearlings450
2019Brook Troutyearlings500
Older records (18 stockings, 1963–2015)
DateSpeciesStageFishStrain / purpose
2015-06-05Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2011-03-05Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2010-05-08Brook Troutyearlings200L. Nipigon x Hills L. · Put-Grow-and Take
2005-05-14Brook Troutyearlings500L. Nipigon x Hills L. · Put-Grow-and Take
2004-05-29Brook Troutyearlings550L. Nipigon x Hills L. · Put-Grow-and Take
2002-06-06Brook Troutyearlings960L. Nipigon x Hills L. · Put-Grow-and Take
1998-06-05Brook Troutyearlings1,000L. Nipigon x Hills L. · Put-Grow-and Take
1991-05-11Brook Troutyearlings1,200Put-and-Take/Put-Grow-and Take
1991-05-11Brook Troutyearlings1,000Put-and-Take/Put-Grow-and Take
1987-05-02Brook Troutyearlings1,000Put-and-Take/Put-Grow-and Take
1987-05-02Brook Troutyearlings1,000Put-and-Take/Put-Grow-and Take
1985-06-03Brook Troutyearlings1,000Put-and-Take/Put-Grow-and Take
1983-06-06Brook Troutyearlings1,000Put-and-Take/Put-Grow-and Take
1981-05-21Brook Troutyearlings1,000Supplemental/Put-Grow-and Take
1978-05-18Brook Troutyearlings825Supplemental
1977-05-11Brook Troutyearlings1,000Supplemental
1964-06-01Brook Troutyearlings2,000
1963-10-01Brook Troutyearlings2,000

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

Where it is

48.5418, -85.1404 · Open in OpenStreetMap