✕ Deepest spot, 9 ftWisconsin DNR survey map. Not for navigation.
Best fishing times All fish
GoodFairSlow
Best windows today, all fish
Times by species available in Premium · lakesheet.com/premium
Wind & weather National Weather Service
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Sources: Wisconsin DNR (lake facts, rules, survey map), National Weather Service. Sun and moon computed for the lake. Best times are a model of light and moon, not a promise. Lake Sheet is not affiliated with the DNR.
Lake SheetMason Lake · back
Rules, log & local dealsWrite it down. Post it later.
Rules on this lake DNR · checked 2026-10-07
Fish
Rule
Musky
40" min · 1/day
Open
Northern pike
32" min · 1/day
Open
Bass
No size limit · keep none 14–18" · 5/day
Open
Panfish
No size limit · 25/day
Open
Sturgeon
No fishing
Closed
Catfish
See specific species regulations in this group
Open
License: Wisconsin fishing license covers this lake. No trout or Great Lakes stamp needed here.
What Mason is best for out of 10
Largemouth
6.7
Bluegill
5.2
Crappie
5.2
Northern pike
5.2
Musky
4.2
Perch
4.2
Catfish
4.2
Trip log Date ____ / ____ Water temp ____°F Wind ______
Time
Spot / depth
Bait
Fish
Length
Kept
Measure it Print at 100% and this ruler is true to size
inches
Caught one? Post it.
Scan with your phone camera to open the Mason board. Post your catch and the water temp. Your spot stays hidden unless you choose to share it.
lakesheet.com/lakes/adams/mason-lake-175700/
Clean, drain, dry7 invasive species here. Remove plants and animals, drain all water, never move live fish or bait.
Eating adviceHealth advice, not a catch limit: eat no more than 1 meal a month of muskies. See the DNR fish consumption guide.
EmergencyCall 911. Say "Mason Lake, Adams County" and the nearest launch (Access Off Golden Dr).
Fishing more than one day?The Mason Lake Report: where, when and how for each fish you pick, every day of your trip. $19.