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Moss Lake East

Vilas County, WisconsinLimited DataMesotrophic

Moss Lake East sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. The lake bottoms out at 29 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 185 acres, Moss Lake East fits the Wisconsin median for monitored lakes, with partial shoreline records. Within the 202 graded lakes of Vilas County, Moss Lake East sits at rank 152, near the bottom of the county list.

Moss Lake East has at least one documented invasive species (Purple Loosestrife), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. Walleye are documented at Moss Lake East, one of 6 fish species on record for the lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-07-24. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

No clarity data. Phosphorus level: 16 µg/L. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)No data
Phosphorus16 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth29 ft
Surface Area185 acres

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ Best fishing times for Moss Lake East (14-day solunar calendar)

→ Is it safe to eat fish from Moss Lake East? (mercury & PFAS guide)

Moss Lake East fishing regulations (limits, seasons, special rules)

Invasive Species

Purple Loosestrife

Water Quality Trend: Improving

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.414 m/yr6
Phosphorus Improving-2.85 µg/L/yr4
See year-by-year chart →

Location

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County Ranking

Ranked #152 of 202 lakes in Vilas County

Nearby Lakes in Vilas County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2020).

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Common)Musky(Present)Smallmouth Bass(Present)Northern Pike(Present)Walleye(Present)

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2024-07-24

Monitoring stations: 1