Long Lake
Langlade County, Wisconsin · WBIC 1000900
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
79 acres
Max depth
22 ft
DNR lake type
Simple, Cool, clear water color
Water clarity
17 ft
Clear, measured Aug 2012
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
17 ft Secchi depthClearOlder reading
Last measured Aug 22, 2012. 1 reading on record, 2012.
Only one reading is on record.
Nothing has been measured in the last 5 years, so this may not match the lake today.
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 Long Lake. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 19 (Apr 13 to Apr 29)
- Surface reaches 48°Fabout May 1 (Apr 19 to May 6)
- Surface reaches 64°Fabout May 18 (May 10 to May 25)
- June surface70°F, usually 69 to 72°F
- July surface76°F, usually 74 to 76°F
- August surface72°F, usually 70 to 74°F
Forms a warm top layer around May 17, lasting about 111 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.
Boat landings
- 1Long Lake AccessBoat ramp · Gravel surface · Township
Directions - 2Black Oak Lake Boat LaunchBoat ramp · Unimproved surface · Township
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Langlade County
- Black Oak Lake0.5 miles away
- Typner Lake0.7 miles away
- Sunfish Lake0.8 miles away
- Lower Bass Lake0.8 miles away
- Lower Clear Lake1.1 miles away
- Shoestring Lake1.2 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
- 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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