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C

Little Pike Lake

Iron County, WisconsinLimited DataMesotrophic

The LakeGrade rubric puts Little Pike Lake at a C: clarity at 7.2 ft, phosphorus readings still being added, and a TSI of 49 signal an intermediate trophic state.

A TSI near 49 places Little Pike Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Little Pike Lake reaches 20 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake is compact at 96 acres, with partial shoreline records and little volume to buffer nutrient inputs. Within Iron County's 33 graded lakes, Little Pike Lake ranks 24 — below the local median, though not at the bottom.

Little Pike Lake has at least one documented invasive species (Banded Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. Walleye are documented at Little Pike Lake, one of 4 fish species on record for the lake. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-29. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 7.2 ft. Trophic State Index: 49.

MetricValueGrade
Water Clarity (Secchi Depth)7.2 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)49Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth20 ft
Surface Area96 acres

Fish Species

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

→ Best fishing times for Little Pike Lake (14-day solunar calendar)

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

Little Pike Lake fishing regulations (limits, seasons, special rules)

Invasive & Introduced Species

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

Banded Mystery Snail

Water Quality Trend: Improving

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+1.058 m/yr4
See year-by-year chart →

Location

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County Ranking

Ranked #24 of 33 lakes in Iron County

Cleaner Lakes Within 30 Miles

Little Pike Lake holds Grade C. 4 nearby lakes hold higher grades.

Nearby Lakes in Iron County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2005. 1 station on file (most recent sample 2025).

DNR Assessment
Good · Shallow Seepage lake
Trophic State Index 51 (eutrophic) · 5-year average

Fish Species (DNR-rated)

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

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2024-09-29

Monitoring stations: 1