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B

Lake Galilee

Ashland County, WisconsinMesotrophic

On the LakeGrade scale Lake Galilee grades a B, with clarity at 9.3 ft and 17 µg/L of phosphorus placing it above the Wisconsin median. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.

The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. The lake bottoms out at 23 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 212 acres, Lake Galilee fits the Wisconsin median for monitored lakes, with partial shoreline records. Within Ashland County's 10 graded lakes, Lake Galilee ranks 7 — below the local median, though not at the bottom.

Lake Galilee has at least one documented invasive species (Banded Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The fishery includes walleye among the lake's 6 documented species — a notable draw for Wisconsin anglers. 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 2025-07-31. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 9.3 ft. Phosphorus level: 16.8 µg/L. Trophic State Index: 45.

MetricValueGrade
Water Clarity (Secchi Depth)9.3 ftC
Phosphorus16.8 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)45Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth23 ft
Surface Area212 acres

Fish Species

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

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

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

Lake Galilee 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 SnailPurple Loosestrife

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Stable+0.1 m/yr6
Phosphorus Improving-0.8 µg/L/yr6
See year-by-year chart →

Location

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County Ranking

Ranked #7 of 10 lakes in Ashland County

Nearby Lakes in Ashland County

State Parks Near Lake Galilee

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2002. 3 stations on file (most recent sample 2025).

Fish Species (DNR-rated)

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

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-07-31

Monitoring stations: 1