Where is Mud Hen Lake?

Mud Hen Lake is a lake in St. Louis County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

How deep is Mud Hen Lake?

Mud Hen Lake has a maximum depth of 7 feet. The lake covers 159 acres.

Are there boat ramps on Mud Hen Lake?

Mud Hen Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mud Hen Lake. Public access is listed as yes.

Can I fish at Mud Hen Lake?

Mud Hen Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.

Mud Hen Lake

St. Louis County, Minnesota159 acresView map Directions

No nutrient or algae sampling on record from Minnesota PCA for this lake.

Max depth

7 ft

Bathymetric survey

Area

159 acres

Surface area

Shoreline

2.3 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)
7 ft max depth
Public access

See the measurements Directions Where to stay

Mud Hen Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 7 ft. Surface area: 159 acres.

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Mud Hen Lake is a 159-acre lake in St. Louis County, Minnesota with a maximum depth of 7 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.

What Mud Hen Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Mud Hen Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Mud Hen Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Mud Hen Lake

These are the measurements Minnesota PCA publishes for Mud Hen Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Mud Hen Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

7 ft

Surface area

159 acres

Shoreline

2.3 mi

Public access

Yes

Listed by Minnesota PCA

The depth above comes from a bathymetric survey of this lake, not from a regional estimate.

Recreation & Access

Boat Landings

Yes

Public Access

Mud Hen LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Mud Hen Lake

Compare lakeside cabins, hotels, and vacation rentals near Mud Hen Lake in St. Louis County, Minnesota — 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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Fishing Mud Hen Lake

→ Mud Hen Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Mud Hen Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Recreation.

Source: EPA ATTAINS assessment unit MN69-0494-00 · Official waterbody report

Nearby Lakes in St. Louis County

Coe Lake1 miView →Little Mud Hen Lake1.2 miView →Tikander Lake2.2 miView →Section Fourteen Lake2.7 miView →Cedar Lake2.5 miView →Loon Lake2.8 miView →

Frequently asked questions about Mud Hen Lake

Where is Mud Hen Lake?: Mud Hen Lake is a lake in St. Louis County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Mud Hen Lake?: Mud Hen Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 7 ft. Surface area: 159 acres.
Is Mud Hen Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Mud Hen Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Mud Hen Lake?: Mud Hen Lake has a maximum depth of 7 feet. The lake covers 159 acres.
Are there boat ramps on Mud Hen Lake?: Mud Hen Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mud Hen Lake. Public access is listed as yes.
Can I fish at Mud Hen Lake?: Mud Hen Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.