Big Twin Lake
Langlade County, Wisconsin · WBIC 182200
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
60 acres
Max depth
35 ft
DNR lake type
Simple, Cool, clear water color
Water clarity
19 ft
Clear, measured Aug 2026
A cool-water lake type: the DNR groups it with lakes that stay cooler through 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 1973), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
19 ft Secchi depthClear
Last measured Aug 28, 2026. 50 readings on record, 2008 to 2026.
Typical summer clarity (June to September): 19 ft, clear, from 31 readings (2012 to 2026).
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 BIG TWIN LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
71.5°F surface, measured Aug 28, 2026
Measured near the surface (0.91 m down). A single reading, not a daily value.
A typical year Modeled estimate
- Ice goes outabout Apr 20 (Apr 15 to Apr 28)
- Surface reaches 48°Fabout May 1 (Apr 21 to May 8)
- Surface reaches 64°Fabout May 24 (May 19 to May 26)
- June surface69°F, usually 68 to 70°F
- July surface75°F, usually 73 to 76°F
- August surface72°F, usually 70 to 73°F
Forms a warm top layer around May 4, lasting about 152 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.
Measured: Wisconsin DNR via the Water Quality Portal (checked Oct 23, 2026). 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.
Boat landings
- 1Big Twin Lake AccessBoat ramp · Gravel surface · Township
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Langlade County
- Lake Ethel0.9 miles away
- Eddy Lake1.3 miles away
- Harper Lake1.7 miles away
- Crystal Lake1.9 miles away
- Harper Springs1.9 miles away
- Sunken Lake2.5 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
- 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
- Measured temperatureWisconsin 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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