Where is Myrtle Lake?

Myrtle 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 Myrtle Lake?

Myrtle Lake has a maximum depth of 20 feet. The lake covers 877 acres.

Are there boat ramps on Myrtle Lake?

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

Can I fish at Myrtle Lake?

Myrtle 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.

Myrtle Lake

St. Louis County, Minnesota877 acresView map Directions

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

Max depth

20 ft

Bathymetric survey

Area

877 acres

Surface area

Shoreline

8.4 mi

Measured length

Impaired · Mercury
20 ft max depth
Public access

See the measurements Directions Where to stay

Myrtle Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 20 ft. Surface area: 877 acres.

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Myrtle Lake is a 877-acre lake in St. Louis County, Minnesota with a maximum depth of 20 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 Myrtle 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. Myrtle Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Myrtle 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 Myrtle Lake

These are the measurements Minnesota PCA publishes for Myrtle 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 Myrtle Lake

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

Lake Details

Max depth

20 ft

Surface area

877 acres

Shoreline

8.4 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

Myrtle 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 Myrtle Lake

Compare lakeside cabins, hotels, and vacation rentals near Myrtle 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.

Top-rated places to stay near Myrtle Lake

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Fishing Myrtle Lake

→ Myrtle Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Myrtle Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)

Designated uses not supporting: Fish consumption, Recreation.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN69-0749-00 · Official waterbody report

Nearby Lakes in St. Louis County

Ban Lake6 ft clear2.7 miView →Clear Lake3 miView →Carlson Lake2.5 miView →Kjostad Lake3.4 miView →Little Elbow Lake5.1 miView →Elbow Lake7 ft clear5 miView →

Frequently asked questions about Myrtle Lake

Where is Myrtle Lake?: Myrtle 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 Myrtle Lake?: Myrtle Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 20 ft. Surface area: 877 acres.
Is Myrtle Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Myrtle Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Myrtle Lake?: Myrtle Lake has a maximum depth of 20 feet. The lake covers 877 acres.
Are there boat ramps on Myrtle Lake?: Myrtle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Myrtle Lake. Public access is listed as yes.
Can I fish at Myrtle Lake?: Myrtle 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.