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Legend Lake

Menominee County, WisconsinMesotrophic

Legend Lake 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.

Mesotrophic conditions dominate at Legend Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. With 1,304 acres of surface and partial shoreline records, Legend Lake is a large water by Wisconsin standards — recreational pressure is spread across a long shoreline. Among the 5 graded lakes in Menominee County, Legend Lake sits at rank 2, above the county median.

Legend Lake has no invasive species recorded in Wisconsin state databases as of 2026, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Legend Lake, which usually reflects a lack of formal fisheries survey work rather than an empty 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 2026-06-15. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 10 ft. Phosphorus level: 13.5 µg/L. Trophic State Index: 43.

MetricValueGrade
Water Clarity (Secchi Depth)10 ftB
Phosphorus13.5 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)43Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Surface Area1,304 acres

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Stable-0.107 m/yr7
Phosphorus Improving-0.84 µg/L/yr6
See year-by-year chart →

Recreation & Access

1
Boat Landings

Location

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County Ranking

Ranked #2 of 5 lakes in Menominee County

Nearby Lakes in Menominee County

Reservoir Info (USACE NID)

Legend Lake is a man-made reservoir impounded by the Legend Lake Number One (completed 1968), built primarily for recreation on the TR WOLF; earth-type dam, 21 ft tall and 190 ft long.

Surface area
1,304 ac
Normal storage
12,000 ac-ft
Max storage
20,000 ac-ft
Drainage area
21.8 sq mi
Hazard class
High
Owner
Legend Lake Protection and Rehabilitation District

All listed purposes: Recreation;Other.

Source: USACE National Inventory of Dams, NID ID WI00235 · Operator website

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Public boat-access points from the USGS National Boat Ramps inventory

Most recent sample: 2026-06-15

Monitoring stations: 11

Where to stay near Legend Lake

Compare lakeside cabins, hotels, and vacation rentals near Legend Lake in Menominee County, Wisconsin — live availability and prices for your trip.

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