Where is Upper Unknown Lake?

Upper Unknown Lake is a lake in Hancock County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.

How deep is Upper Unknown Lake?

Upper Unknown Lake has a maximum depth of 14 feet. The lake covers 51 acres.

Upper Unknown Lake

Hancock County, Maine51 acresView map Directions

No nutrient or algae sampling on record from Maine DEP for this lake.

Max depth

14 ft

Bathymetric survey

Area

51 acres

Surface area

Shoreline

1.4 mi

Measured length

14 ft max depth

See the measurements Directions Where to stay

Upper Unknown Lake in Hancock County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 14 ft. Surface area: 51 acres.

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Upper Unknown Lake is a 51-acre lake in Hancock County, Maine with a maximum depth of 14 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Upper Unknown Lake is safe to swim in today is a call for the Maine Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Upper Unknown Lake

These are the measurements Maine DEP publishes for Upper Unknown 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.

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

Lake Details

Max depth

14 ft

Surface area

51 acres

Shoreline

1.4 mi

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

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Stays near Upper Unknown Lake

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Fishing Upper Unknown Lake

→ Upper Unknown Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Hancock County

Middle Unknown Lake0.7 miView →Lower Unknown Lake1.2 miView →Upper Chain Lake14.5 ft clear · Mesotrophic2.1 miView →Duck Lake2.2 miView →Killman Pond12.7 ft clear · Mesotrophic2.2 miView →Middle Chain Lake14.1 ft clear · Mesotrophic2.9 miView →

Frequently asked questions about Upper Unknown Lake

Where is Upper Unknown Lake?: Upper Unknown Lake is a lake in Hancock County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.
What is the water quality of Upper Unknown Lake?: Upper Unknown Lake in Hancock County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 14 ft. Surface area: 51 acres.
Is Upper Unknown Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Upper Unknown Lake?: Upper Unknown Lake has a maximum depth of 14 feet. The lake covers 51 acres.