Lost Land Lake
Sawyer County, Wisconsin1,264 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Lost Land Lake. Here is what has been measured.
- Mesotrophic
- 21 ft max depth
- Public access
Lost Land Lake in Sawyer County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 10 ft visibility. Phosphorus: 17.1 µg/L. Maximum depth: 21 ft. Surface area: 1264 acres.
Wisconsin DNR lists Musky as common on Lost Land Lake. DNR survey details →
Lost Land Lake is a 1,264-acre mesotrophic lake in Sawyer County, Wisconsin with a maximum depth of 21 feet. Overall water quality is improving over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available. Compared to the 44 other monitored lakes in Sawyer County, Lost Land Lake ranks #27 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-20. Methodology: how these readings are compared.
Lost Land Lake covers about 1,300 acres in Sawyer County. Vrbo is where to look for cabins and lake homes around Lost Land Lake, and Booking.com and Expedia search hotels near the lake for your dates.
What Lost Land Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10 ft of visibility
- Fishing6 species recorded
- Big water1,264 acres
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lost Land Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lost Land Lake
These are the measurements Wisconsin DNR publishes for Lost Land Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10 ft. Phosphorus 17.1 µg/L. TSI 45.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 17.1µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 45 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Lost Land Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Lost Land Lake typically sits around 65°F at the surface in September. Summer average is about 74°F. Usually warmest in Aug (about 77°F) and coldest in Apr (about 54°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (54°F) to its warmest (77°F).
Typical surface water temperature by month, from 14 field readings (2024–2026) via the EPA Water Quality Portal. See the full Lost Land Lake water temperature breakdown →
Wisconsin DNR lists Musky as common on Lost Land Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Lost Land Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1993. 6 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Lake Details
Max depth
21 ft
Surface area
1,264 acres
Public access
Yes
Listed by Wisconsin DNR
Lake Size & Watershed
Watershed (drainage) area
21 sq mi
HydroLAKES / HydroSHEDS
Shoreline
9.3 mi
HydroLAKES / HydroSHEDS
Elevation
1,371 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Lost Land Lake
Compare lakeside cabins, hotels, and vacation rentals near Lost Land Lake in Sawyer County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lost Land Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Follow Lost Land Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fish Species
Click a species to see every lake where it is documented.
Fishing Lost Land Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: Improving
Based on 6 years of monitoring (2021–2026).
Water clarity
Improving5 years
Phosphorus
Improving-1.2 µg/L/yr6 years
Nearby Lakes in Sawyer County
Frequently asked questions about Lost Land Lake
Where is Lost Land Lake?
- Lost Land Lake is a lake in Sawyer County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Lost Land Lake?
- Lost Land Lake in Sawyer County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 10 ft visibility. Phosphorus: 17.1 µg/L. Maximum depth: 21 ft. Surface area: 1264 acres.
Is Lost Land Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Lost Land Lake?
- Lost Land Lake typically sits around 65°F at the surface in September, from 14 EPA Water Quality Portal field readings (2024–2026). That is a typical value for the month, not a live reading.
How deep is Lost Land Lake?
- Lost Land Lake has a maximum depth of 21 feet. The lake covers 1264 acres.
What fish are in Lost Land Lake?
- Fish species found in Lost Land Lake include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Lost Land Lake is located in Sawyer County, Wisconsin.
What did the DNR fisheries survey find at Lost Land Lake?
- Wisconsin DNR lists Musky as common on Lost Land Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Lost Land Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Lost Land Lake?
- Public access to Lost Land Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore Lost Land Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Fish species and the cleanest lakes across Wisconsin
Fish species and best lakes in Sawyer County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Hayward Lakes area
Where to stay at Wisconsin's top lakes, each with its readings
Lakes in the Chippewa River Watershed, ranked by water quality
Wisconsin's cleanest lakes, ranked on agency measurements
More lakes in Wisconsin
Other Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Compare Lost Land Lake With Nearby Lakes
Where this data comes from
48 measurements from 1 monitoring station, 2021–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX48 samples · 2021–2026
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes