Lost Lake
Marathon County, Wisconsin · WBIC 1407000
Size
42 acres
Max depth
22 ft
DNR lake type
Simple, Cool, dark water color
Water clarity
4 ft
Low, measured Jul 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 1982), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
4 ft Secchi depthLowOlder reading
Last measured Jul 5, 2012. 5 readings on record, 1999 to 2012.
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 LOST LAKE - LOST LAKE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 11 (Apr 3 to Apr 22)
- Surface reaches 48°Fabout Apr 21 (Apr 16 to Apr 29)
- Surface reaches 64°Fabout May 13 (May 6 to May 21)
- June surface73°F, usually 71 to 75°F
- July surface79°F, usually 77 to 79°F
- August surface75°F, usually 72 to 76°F
Forms a warm top layer around Apr 17, lasting about 201 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
- Walleyelast stocked 2024 (large fingerling and yearling); stocked in 5 years since 2010
- Yellow Perchlast stocked 2024 (adult, large fingerling and yearling); stocked in 9 years since 2010
- Fathead Minnowlast stocked 2015 (adult); stocked in 1 year 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.
Fish recorded near this lake
- Black Crappie Pomoxis nigromaculatus2005; 2 records
- Bluegill Lepomis macrochirus2005; 2 records
- Largemouth Bass Micropterus salmoides2005; 2 records
- White Sucker Catostomus commersonii2005; 1 record
- Yellow Bullhead Ameiurus natalis2005; 1 record
- Yellow Perch Perca flavescens2005; 2 records
Recorded in open fish survey and museum records (GBIF). A record shows a fish was found near this lake in that year, not that it is there now, and says nothing about how many. Most coordinates are rounded to about 1 km, so a record is attached only when one lake is the clear match.
Open fish survey and museum records from GBIF; datasets are listed on the sources page. Checked Oct 23, 2026.
Boat landings
- 1Lost Lake Boat RampBoat ramp · Gravel surface · Township
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Marathon County
- Muddy Lake0.9 miles away
- Rice Lake1.3 miles away
- Bass Lake1.3 miles away
- Pike Lake2.5 miles away
- Norrie Lake4.5 miles away
- Clay Pond4.7 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
- Fish recordedOpen fish survey and museum records, via GBIF, 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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