Where is Granny Marsh?

Granny Marsh is a lake in Herkimer County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.

How deep is Granny Marsh?

Granny Marsh has a maximum depth of 6.6 feet and an average depth of 3.3 feet. The lake covers 25 acres.

Granny Marsh

Herkimer County, New York25 acresView map Directions

No nutrient or algae sampling on record from NY DEC for this lake.

Max depth

6.6 ft

Bathymetric survey

Area

25 acres

Surface area

Shoreline

1.5 mi

Measured length

7 ft max depth

See the measurements Directions Where to stay

Granny Marsh in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 6.6 ft. Surface area: 25 acres.

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Granny Marsh is a 25-acre lake in Herkimer County, New York with a maximum depth of 7 feet (3-foot average).

Source: EPA Water Quality Portal sampling records, NYSDEC. 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 Granny Marsh is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Granny Marsh

These are the measurements NY DEC publishes for Granny Marsh, 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 Granny Marsh

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

Lake Details

Max depth

6.6 ft

Average depth

3.3 ft

Surface area

25 acres

Shoreline

1.5 mi

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Stays near Granny Marsh

Compare lakeside cabins, hotels, and vacation rentals near Granny Marsh in Herkimer County, New York — 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 Granny Marsh

→ Granny Marsh fishing regulations (limits, seasons, special rules)

Nearby Lakes in Herkimer County

Gull Lake2 miView →Bear Lake2.4 miView →Chub Pond3.7 miView →Gull Lake—View →Woodhull Lake4.2 miView →Nelson Lake—View →

Frequently asked questions about Granny Marsh

Where is Granny Marsh?: Granny Marsh is a lake in Herkimer County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Granny Marsh?: Granny Marsh in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 6.6 ft. Surface area: 25 acres.
Is Granny Marsh safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Granny Marsh?: Granny Marsh has a maximum depth of 6.6 feet and an average depth of 3.3 feet. The lake covers 25 acres.