Skip to main content
LakeQuality

Mosslake_deep

Vilas County, Wisconsin185 acresView mapDirections

Wisconsin DNR publishes the water-quality measurements for Mosslake_deep. Here is what has been measured.

Phosphorus
23 µg/L
Typical for Wisconsin
Measured by Wisconsin DNR
Water temp
~65°F
Typical for Sep · EPA WQP
Max depth
29 ft
Bathymetric survey
Area
185 acres
Surface area
Trend
Improving
5 years of samples
  • Purple Loosestrife
  • 29 ft max depth
  • Limited data

Mosslake_deep in Vilas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 23 µg/L. Maximum depth: 29 ft. Surface area: 185 acres.

Wisconsin DNR lists Panfish as common on Mosslake_deep. DNR survey details →

Loading map…

Mosslake_deep is a 185-acre lake in Vilas County, Wisconsin with a maximum depth of 29 feet. Overall water quality is improving over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Largemouth Bass.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2022-07-12. Methodology: how these readings are compared.

What Mosslake_deep is good for

From access and monitoring records, not editorial picks.

  • Fishing6 species recorded

Swimming conditions

No reading

Bacteria tested: low

Bacteria testing record
from E. coli testing · 8 samples, 2 seasons

Based on E. coli testing, Mosslake_deep never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 8 samples across 2 seasons.

This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Wisconsin’s current beach and health-department advisories before swimming.

Whether Mosslake_deep 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.

Compare swimming lakes near Minocqua →

Get alerts for Mosslake_deep →

Water quality measurements for Mosslake_deep

These are the measurements Wisconsin DNR publishes for Mosslake_deep, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. Phosphorus 23 µg/L. TSI 49.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus23µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

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.49Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Mosslake_deep

Answers come straight from the public measurements and survey records on this page.

Water Temperature

Mosslake_deep typically sits around 65°F at the surface in September. Summer average is about 66°F. Usually warmest in Jul (about 71°F) and coldest in Jun (about 61°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
61°
Jun
71°
Jul
Aug
65°
Sep
Oct
Nov
Dec

Column height runs from this lake’s coldest month (61°F) to its warmest (71°F).

Typical surface water temperature by month, from 21 field readings (2024–2024) via the EPA Water Quality Portal. See the full Mosslake_deep water temperature breakdown →

DNR fisheries survey

Wisconsin DNR lists Panfish as common on Mosslake_deep.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Mosslake_deep’s water-quality measurements separately, and the water-quality trend over 5 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. 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)

Lake Details

Max depth

29 ft

Surface area

185 acres

Stays via Stay22

Stays near Mosslake_deep

Compare lakeside cabins, hotels, and vacation rentals near Mosslake_deep in Vilas 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 Mosslake_deep

Prices for Oct 16–18, 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 Mosslake_deep’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 Mosslake_deep

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Purple Loosestrife

Based on 5 years of monitoring (2021–2024).

  • Phosphorus

    Improving

    -2.85 µg/L/yr4 years

See year-by-year chart →

Nearby Lakes in Vilas County

Frequently asked questions about Mosslake_deep

Where is Mosslake_deep?

Mosslake_deep is a lake in Vilas County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

What is the water quality of Mosslake_deep?

Mosslake_deep in Vilas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 23 µg/L. Maximum depth: 29 ft. Surface area: 185 acres.

Measurements on this page ↑

Is Mosslake_deep safe to swim in?

Based on E. coli testing, Mosslake_deep never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 8 samples across 2 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Mosslake_deep is safe to swim in today is a call for Wisconsin's water agency and the county health department; check their current beach advisories before you swim.

Swimming on this page ↑

What is the water temperature of Mosslake_deep?

Mosslake_deep typically sits around 65°F at the surface in September, from 21 EPA Water Quality Portal field readings (2024–2024). That is a typical value for the month, not a live reading.

Temp on this page ↑

How deep is Mosslake_deep?

Mosslake_deep has a maximum depth of 29 feet. The lake covers 185 acres.

What fish are in Mosslake_deep?

Fish species found in Mosslake_deep include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Mosslake_deep is located in Vilas County, Wisconsin.

Fish on this page ↑

What did the DNR fisheries survey find at Mosslake_deep?

Wisconsin DNR lists Panfish as common on Mosslake_deep. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Mosslake_deep’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Where this data comes from

2 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Lac Du Flambeau Band of Lake Superior Chippewa Indians Water Program (Tribal)LDFWATER20072 samples · 2021–2022

Analytical methods

  • 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
  • 4500 P F ~ Phosphorus in Water by Colorimetry Automated Ascorbic Acid Method
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

Fish and recreation data from Wisconsin DNR Lakes