Mamie Lake
Vilas County, Wisconsin337 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- 2 aquatic invasives
- 15 ft max depth
- Public access
- Limited data
Mamie Lake in Vilas County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.5 ft visibility. Maximum depth: 15 ft. Surface area: 337 acres.
Wisconsin DNR lists Musky as common on Mamie Lake. DNR survey details →
- Clarity
- 4.5 ft
- Max depth
- 15 ft
- Area
- 337 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Watch Mamie Lake’s letter
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Why Mamie Lake has no grade
Mamie Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Mamie Lake is Not Rated — not an F. Its 4.5-foot median from 32 readings collected 2021–2022 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Mamie Lake is a 337-acre lake in Vilas County, Wisconsin with a maximum depth of 15 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 with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2022-09-11. Grade methodology: LakeQuality methodology.
What Mamie Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
- Fishing6 species recorded
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Mamie Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 4.5 ft. TSI 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Wisconsin DNR lists Musky as common on Mamie Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Mamie Lake, and the water-quality trend over 3 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. 2 stations on file (most recent sample 2018).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 15 ft |
| Surface Area | 337 acres |
| Public Access | Yes |
Recreation & Access
- Helen CreekPublic
- Mamie LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Mamie 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 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.18 m/yr | 3 |
| Phosphorus | ↑ Improving | -5.25 µg/L/yr | 3 |
Graded lakes near Mamie Lake
Mamie Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Vilas County
Frequently asked questions about Mamie Lake
Where is Mamie Lake?
- Mamie Lake is a lake in Vilas County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Mamie Lake?
- Mamie Lake in Vilas County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.5 ft visibility. Maximum depth: 15 ft. Surface area: 337 acres.
Is Mamie Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Mamie Lake?
- Mamie Lake has a maximum depth of 15 feet. The lake covers 337 acres.
What fish are in Mamie Lake?
- Fish species found in Mamie Lake include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Mamie Lake is located in Vilas County, Wisconsin.
What did the DNR fisheries survey find at Mamie Lake?
- Wisconsin DNR lists Musky as common on Mamie Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Mamie Lake, and the water-quality trend over 3 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Mamie Lake?
- Mamie Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Helen Creek, Mamie Lake. Public access is listed as yes.
Explore Mamie Lake across LakeQuality
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Where this data comes from
32 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS32 samples · 2021–2022
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
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory