Lost Land Lake
Lost Land Lake in Sawyer County, Wisconsin has a water quality grade of B (Good). Water clarity: 10 ft visibility. Phosphorus: 17.1 µg/L. Maximum depth: 21 ft. Surface area: 1264 acres.
- Clarity
- 10 ft
- Typical in August
- 77°F
- Max depth
- 21 ft
- Area
- 1,264 acres
- Type
- Mesotrophic
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Sawyer County
Lost Land Lake is a 1,264-acre mesotrophic lake in Sawyer County, Wisconsin with a maximum depth of 21 feet. Water quality is graded B based on 1 sampling years through 2026. 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 with 1 public boat landing. 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. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Good clarity, visible to about 10 ft. Phosphorus level: 17.1 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10 ft | Not graded |
| Phosphorus | 17.1 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay 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.
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Water Temperature
Lost Land Lake typically sits around 77°F at the surface in August. 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.
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 →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 21 ft |
| Surface Area | 1,264 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Lost Land/Teal LakePublic
Fish Species
Click a species to see every graded 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.
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)
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.55 m/yr | 5 |
| Phosphorus | ↑ Improving | -1.2 µg/L/yr | 6 |
County Ranking
Ranked #27 of 45 lakes in Sawyer County
Nearby Lakes in Sawyer County
Frequently asked questions about Lost Land Lake
What is the water quality grade for Lost Land Lake?
- Lost Land Lake in Sawyer County, Wisconsin has a water quality grade of B (Good). 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?
- Good for swimming, clear water with low algae levels. Lost Land Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Lost Land Lake?
- Lost Land Lake typically sits around 77°F at the surface in August, 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.
Are there boat ramps on Lost Land Lake?
- Lost Land Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lost Land/Teal Lake. Public access is listed as yes.
Explore Lost Land Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Sawyer County
Species activity outlook by water temperature and season
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Where to stay at Wisconsin's top lakes, each with its grade
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Moderate nutrients, good water quality
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More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
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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)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory