Little Tomahawk Lake
Oneida County, Wisconsin · WBIC 1543900
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
160 acres
Max depth
48 ft
DNR lake type
Complex, Two Story
Water clarity
16.1 ft
Clear, measured Aug 2022
A deep lake type that can hold a cold layer below the warm surface in summer. This describes the lake type in general, not this lake in particular.
Outline
Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1982), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
16.1 ft Secchi depthClear
Last measured Aug 17, 2022. 50 readings on record, 2000 to 2022.
Typical summer clarity (June to September): 17.6 ft, clear, from 14 readings (2012 to 2022).
Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. Clear means a Secchi depth of 10 feet or more, moderate 5 to 10 feet, low under 5 feet.
Wisconsin DNR water monitoring (volunteer and staff), via the Water Quality Portal; station Little Tomahawk Lake - Max Depth. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 25 (Apr 16 to Apr 30)
- Surface reaches 48°Fabout May 7 (May 3 to May 12)
- Surface reaches 64°Fabout May 31 (May 28 to Jun 6)
- June surface68°F, usually 66 to 69°F
- July surface73°F, usually 72 to 75°F
- August surface71°F, usually 70 to 73°F
Forms a warm top layer around May 7, lasting about 147 days.
A computer model of this lake's typical weather and water, built from 15 years, 2005 to 2019. Ranges show the middle half of years. The model was not calibrated against measured temperatures for this lake. It is an estimate, not a measurement.
Modeled: U.S. Geological Survey lake temperature data release (doi:10.5066/P9CA6XP8).
Today at the lake
Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.
Stocking history
- Muskellungelast stocked 2025 (large fingerling); stocked in 7 years since 2010
- Walleyelast stocked 2022 (large fingerling); stocked in 5 years since 2010
Stocking shows what was added to the lake, not what is in it now.
Wisconsin DNR annual fish stocking summary. Checked Oct 23, 2026.
Boat landings
- 1McGrath Lake AccessBoat ramp · Gravel surface · State(dnr)
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Oneida County
- McGrath Lake0.5 miles away
- Big Carr Lake0.5 miles away
- Mud Lake0.7 miles away
- Little Carr Lake0.9 miles away
- Bird Lake1.3 miles away
- North Two Lakes1.6 miles away
Where this comes from
- Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
- OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
- Stocking historyWisconsin DNR annual fish stocking summary, checked Oct 23, 2026
- Regulations linkWisconsin DNR fishing regulations (linked, not restated), checked Oct 23, 2026
- Boat landingsWisconsin DNR public boat access sites, checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
- Depth map linkWisconsin DNR lake maps list, checked Oct 24, 2026
See data sources for what each source covers, and about for how the numbers are matched to lakes.
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