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Horseshoe Lake

B
Grade B — Good
Good · #2 of 11 lakes in the county · 8 ft clear · Mesotrophic · 11 acres
Mesotrophic

Horseshoe Lake in Langlade County, Wisconsin has a water quality grade of B (Good). Water clarity: 8 ft visibility. Phosphorus: 17.5 µg/L. Maximum depth: 29 ft. Surface area: 11 acres.

Clarity
8 ft
Max depth
29 ft
Area
11 acres
Type
Mesotrophic
Trend
Declining

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CDeep Hole Lake9 ft clear · Langlade CountyView →
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Horseshoe Lake is a 11-acre mesotrophic lake in Langlade County, Wisconsin with a maximum depth of 29 feet. Water quality is graded B based on 1 sampling years through 2026. Overall water quality is declining over recent sampling years. The lake supports 2 documented fish species including Panfish and Largemouth Bass. Compared to the 10 other monitored lakes in Langlade County, Horseshoe Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-07-03. Grade methodology: LakeGrade methodology.

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Swimming Safety

Grade only

Low 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

Compare the safest swimming lakes near Rhinelander

Get alerts for Horseshoe Lake

Water Quality Grade: B (Good)

Moderate clarity, visible to about 8 ft. Phosphorus level: 17.5 µg/L. Trophic State Index: 46.

MetricValueGrade
Water Clarity (Secchi Depth)8 ftNot graded
Phosphorus17.5 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)46Mesotrophic

Moderate nutrients, good water quality

Where to stay near Horseshoe Lake

Compare lakeside cabins, hotels, and vacation rentals near Horseshoe Lake in Langlade 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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Lake Details

CharacteristicValue
Maximum Depth29 ft
Surface Area11 acres

Lake Size & Watershed

Watershed (drainage) area
1 sq mi
Shoreline
2.1 mi
Elevation
1,686 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Fish Species

Click a species to see every graded lake where it is documented.

Fishing Horseshoe Lake

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2015. 1 station on file (most recent sample 2025).

DNR Assessment
Excellent · Deep Headwater lake
Trophic State Index 46 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Present)Largemouth Bass(Present)

Based on 7 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.018 m/yr7
Phosphorus Declining+1.79 µg/L/yr7
See year-by-year chart →

County Ranking

Ranked #2 of 11 lakes in Langlade County

Nearby Lakes in Langlade County

Frequently asked questions about Horseshoe Lake

What is the water quality grade for Horseshoe Lake?

Horseshoe Lake in Langlade County, Wisconsin has a water quality grade of B (Good). Water clarity: 8 ft visibility. Phosphorus: 17.5 µg/L. Maximum depth: 29 ft. Surface area: 11 acres.

Is Horseshoe Lake safe to swim in?

Good for swimming, clear water with low algae levels. Horseshoe Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.

How deep is Horseshoe Lake?

Horseshoe Lake has a maximum depth of 29 feet. The lake covers 11 acres.

What fish are in Horseshoe Lake?

Fish species found in Horseshoe Lake include Panfish, Largemouth Bass. Horseshoe Lake is located in Langlade County, Wisconsin.

Where this data comes from

42 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX42 samples · 2020–2026

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