Stocked

FMZ 6 · Dorion · Thunder Bay District

Cavern Lake

Cavern Lake (FMZ 6) was last stocked in 2025 with 4,000 Brook Trout yearlings.

Records here go back to 1949: 111 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 6 worth fishing.

Fish stocked per yearShaded years 2021–2023: those fish should be catchable size now
2016: 4,000 Brook Trout4.0k20162017: 4,500 Brook Trout4.5k20172018: 4,000 Brook Trout4.0k20182019: 4,000 Brook Trout4.0k20192020: 3,000 Brook Trout3.0k20202021: 4,000 Brook Trout4.0k202120222023: 4,000 Brook Trout4.0k20232024: 3,000 Brook Trout3.0k20242025: 4,000 Brook Trout4.0k20252026
  • Brook Trout

By species

  • Brook TroutIn the sweet spot
    Last stocked
    2025
    Stocked 2021–2023
    8,000
    Last 10 yrs
    30,500

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

  • Lake TroutHistorical only
    Last stocked
    1966
    Stocked 2021–2023
    0
    Last 10 yrs
    0

    No stockings in the last ten years of data.

  • Rainbow TroutHistorical only
    Last stocked
    1965
    Stocked 2021–2023
    0
    Last 10 yrs
    0

    No stockings in the last ten years of data.

  • SplakeHistorical only
    Last stocked
    1954
    Stocked 2021–2023
    0
    Last 10 yrs
    0

    No stockings in the last ten years of data.

Stocking history

YearSpeciesStageFishNotes
2025Brook Troutyearlings4,000
2024Brook Troutyearlings3,000
2023Brook Troutyearlings4,000
2021Brook Troutyearlings4,000
2020Brook Troutyearlings3,000
2019Brook Troutyearlings4,000
2018Brook Troutyearlings4,000
2017Brook Troutyearlings4,500
2016Brook Troutyearlings4,000
Older records (102 stockings, 1949–2015)
DateSpeciesStageFishStrain / purpose
2015-05-07Brook Troutyearlings3,999Lake Nipigon (DNC) · Put-Grow-and Take
2014-03-25Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2013-06-03Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2012-05-07Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2011-05-26Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2010-04-22Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2009-05-21Brook Troutyearlings3,000Lake Nipigon (DNC) · Put-Grow-and Take
2007-03-06Brook Troutyearlings4,000Lake Nipigon (HLC) · Put-Grow-and Take
2006-09-26Brook Troutfingerlings3,750Lake Nipigon (HLC) · Put-Grow-and Take
2006-06-04Brook Troutfingerlings2,449Lake Nipigon (DNC) · Put-Grow-and Take
2006-05-04Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2006-05-04Brook Troutyearlings300L. Nipigon x Hills L. · Put-Grow-and Take
2005-04-27Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2004-05-06Brook Troutyearlings3,996Lake Nipigon (DNC) · Put-Grow-and Take
2003-09-15Brook Troutsub-adults185Lake Nipigon (DNC) · Put-Grow-and Take
2003-06-12Brook Troutyearlings2,000Lake Nipigon (DNC) · Put-Grow-and Take
2003-05-08Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2002-06-05Brook Troutyearlings3,000Lake Nipigon (DNC) · Put-Grow-and Take
2002-05-09Brook Troutyearlings2,000Lake Nipigon (DNC) · Put-Grow-and Take
2001-05-18Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
2000-05-02Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
1998-10-06Brook Troutyearlings9,600Hills Lake · Put-Grow-and Take
1998-05-15Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
1997-06-04Brook Troutyearlings3,500Lake Nipigon (DNC) · Put-Grow-and Take
1996-05-28Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
1995-06-19Brook Troutyearlings1,500Lake Nipigon (DNC) · Put-Grow-and Take
1995-05-23Brook Troutyearlings3,500Lake Nipigon (DNC) · Put-Grow-and Take
1995-05-10Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
1993-05-10Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
1992-06-15Brook Troutyearlings905Lake Nipigon (DNC) · Put-Grow-and Take
1992-05-20Brook Troutyearlings4,000Lake Nipigon (DNC) · Put-Grow-and Take
1990-06-05Brook Troutyearlings950Put-Grow-and Take
1990-05-02Brook Troutyearlings2,000Put-Grow-and Take
1989-06-08Brook Troutyearlings450Put-Grow-and Take
1989-05-12Brook Troutyearlings4,000Put-Grow-and Take
1988-04-26Brook Troutyearlings4,875Put-Grow-and Take
1987-04-22Brook Troutyearlings4,000Put-Grow-and Take
1986-05-22Brook Troutyearlings4,000Put-Grow-and Take
1985-05-15Brook Troutyearlings4,000Put-Grow-and Take
1984-05-17Brook Troutyearlings4,000Put-Grow-and Take
1983-06-01Brook Troutyearlings5,000Put-Grow-and Take
1981-12-03Brook Troutsub-adults1,190Put-and-Take
1981-11-26Brook Troutsub-adults812Put-Grow-and Take
1981-11-20Brook Troutsub-adults400Put-Grow-and Take
1981-11-19Brook Troutsub-adults310Put-Grow-and Take
1981-06-08Brook Troutfingerlings2,000Put-Grow-and Take
1981-06-08Brook Troutyearlings900Put-Grow-and Take
1981-05-26Brook Troutyearlings2,500Put-Grow-and Take
1980-11-06Brook Troutsub-adults160Supplemental
1980-11-04Brook Troutsub-adults480Supplemental
1980-05-14Brook Troutyearlings2,000Supplemental
1980-05-06Brook Troutyearlings2,000Supplemental
1979-11-19Brook Troutsub-adults600Supplemental
1979-11-19Brook Troutsub-adults400Supplemental
1979-06-27Brook Troutyearlings2,000Supplemental
1978-06-05Brook Troutyearlings2,625Supplemental/Put-and-Take
1976-05-06Brook Troutyearlings1,500Supplemental
1976-05-06Brook Troutyearlings1,499Supplemental
1975-10-21Brook Troutsub-adults300Supplemental
1975-09-17Brook Troutyearlings200Supplemental
1975-06-11Brook Troutfingerlings3,000Supplemental
1975-05-16Brook Troutyearlings700Supplemental
1974-06-17Brook Troutfingerlings3,000Supplemental
1973-11-08Brook Troutadults450DN
1973-06-04Brook Troutfingerlings3,000DN
1973-05-20Brook Troutyearlings3,700DN
1972-06-05Brook Troutfingerlings3,000
1972-06-05Brook Troutyearlings500
1971-01-01Brook Troutfingerlings3,000
1970-11-01Brook Troutadults3,830
1970-10-01Brook Troutadults800
1970-07-01Brook Troutyearlings1,000
1970-06-01Brook Troutfingerlings10,000
1969-11-01Brook Troutadults500
1969-06-01Brook Troutfingerlings5,000
1968-10-01Brook Troutadults250
1968-08-01Brook Troutadults400
1968-06-01Brook Troutfingerlings5,000
1967-10-01Brook Troutadults700
1967-06-01Brook Troutfingerlings5,000
1966-11-01Brook Troutadults1,400
1966-06-01Lake Troutyearlings6,980
1966-06-01Brook Troutyearlings2,000
1965-05-01Rainbow Troutyearlings3,220
1965-05-01Brook Troutyearlings1,000
1964-06-01Brook Troutyearlings1,000
1963-11-01Brook Troutadults300
1963-08-01Brook Troutfingerlings4,500
1963-06-01Brook Troutyearlings250
1962-06-01Brook Troutfingerlings2,000
1961-05-01Brook Troutyearlings500
1958-05-01Brook Troutyearlings200
1957-10-01Brook Troutadults280
1955-05-01Brook Troutyearlings2,000
1954-11-01Splakeadults2,190
1954-06-01Lake Troutyearlings3,000
1952-06-01Brook Troutyearlings3,000
1951-07-01Brook Troutyearlings1,500
1951-06-01Lake Troutyearlings1,000
1950-07-01Brook Troutyearlings2,000
1950-06-01Lake Troutyearlings2,000
1949-07-01Brook Troutfingerlings4,000

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

Where it is

48.8321, -88.6649 · Open in OpenStreetMap