Tomahawk Lake
By Lake Tomahawk. 3,462 acres, 84 feet at the deepest.
Ice on Tomahawk Lake
No ice reports from Tomahawk Lake in the last two weeks.
What folks saw out there, not the DNR. No ice is safe ice; check it yourself.
Fish
- Common: musky, panfish, smallmouth bass and walleye
- Also there: largemouth bass and northern pike
How the DNR lists them. It doesn't say how the fishing is.
Boat landings
- Katherine, Tomahawk ChannelMap · DNR details
- Indian Mounds CampgroundMap · DNR details
- Coffen Ln off Hwy 47Map · DNR details
Water and bottom
- Water: very clear
- Bottom: 55% sand, 19% gravel, 21% rock, 5% muck
- Kind of lake: a drainage lake: a stream runs in and out
Invasive species
The DNR has found banded mystery snail, Chinese mystery snail, curly-leaf pondweed, Eurasian water-milfoil, purple loosestrife, rusty crayfish and yellow iris here.
State law: before you leave the landing, pull off any plants and critters, drain all the water out of your boat, motor, livewell and buckets, and never move live fish away from the lake.
Depth map
Wisconsin DNR lake survey map, mapped August 1970. Mind the north arrow; some of these old maps are turned sideways. It's old and not for navigation; shorelines and depths change. The DNR lists the lake at 3,462 acres today. The DNR's original (PDF)
Lake facts from the Wisconsin DNR's page for Tomahawk Lake, checked October 26, 2026.