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LakeQuality

Ludington Lake-Deep Hole

NR
Not yet rated
9.7 ft clear · Mesotrophic · 29 acres
Limited DataMesotrophic

Ludington Lake-Deep Hole in Forest County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.7 ft visibility. Maximum depth: 30 ft. Surface area: 29 acres.

Wisconsin DNR rates Panfish as abundant on Ludington Lake-Deep Hole. DNR survey details →

Clarity
9.7 ft
Max depth
30 ft
Area
29 acres
Public access
Yes

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Why Ludington Lake-Deep Hole has no grade

We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Ludington Lake-Deep Hole, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. 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.

Ludington Lake-Deep Hole is a 29-acre lake in Forest County, Wisconsin with a maximum depth of 30 feet. The lake supports 2 documented fish species including 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 2022-07-07. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Rhinelander

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Water quality measurements for Ludington Lake-Deep Hole

These readings exist but are not enough for an A–F grade — see why.

Moderate clarity, visible to about 9.7 ft. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)9.7 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Where to stay near Ludington Lake-Deep Hole

Compare lakeside cabins, hotels, and vacation rentals near Ludington Lake-Deep Hole in Forest 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.

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DNR fisheries survey

Wisconsin DNR rates Panfish as abundant on Ludington Lake-Deep Hole.

A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Ludington Lake-Deep Hole — official chemistry is on file, not a letter. 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 2022).

Fish Species (DNR-rated)

Panfish(Abundant)Largemouth Bass(Common)

Lake Details

CharacteristicValue
Maximum Depth30 ft
Surface Area29 acres
Public AccessYes

Recreation & Access

2
Boat Landings
Yes
Public Access
  • Himley LakePublic
  • Ludington 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 Ludington Lake-Deep Hole

Graded lakes near Ludington Lake-Deep Hole

Ludington Lake-Deep Hole has no grade, but these lakes within a short drive do.

Nearby Lakes in Forest County

Frequently asked questions about Ludington Lake-Deep Hole

Where is Ludington Lake-Deep Hole?

Ludington Lake-Deep Hole is a lake in Forest County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.

What is the water quality grade for Ludington Lake-Deep Hole?

Ludington Lake-Deep Hole in Forest County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.7 ft visibility. Maximum depth: 30 ft. Surface area: 29 acres.

Is Ludington Lake-Deep Hole safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Ludington Lake-Deep Hole is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

How deep is Ludington Lake-Deep Hole?

Ludington Lake-Deep Hole has a maximum depth of 30 feet. The lake covers 29 acres.

What fish are in Ludington Lake-Deep Hole?

Fish species found in Ludington Lake-Deep Hole include Panfish, Largemouth Bass. Ludington Lake-Deep Hole is located in Forest County, Wisconsin.

What did the DNR fisheries survey find at Ludington Lake-Deep Hole?

Wisconsin DNR rates Panfish as abundant on Ludington Lake-Deep Hole. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Ludington Lake-Deep Hole — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.

Are there boat ramps on Ludington Lake-Deep Hole?

Ludington Lake-Deep Hole has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Himley Lake, Ludington Lake. Public access is listed as yes.

Mesotrophic Lakes in Wisconsin

Where this data comes from

1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX1 sample · 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