Where is Granite Lake?

Granite Lake is a lake in Cheshire County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.

How deep is Granite Lake?

Granite Lake has a maximum depth of 115 feet and an average depth of 32.2 feet. The lake covers 233 acres.

Are there boat ramps on Granite Lake?

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

Can I fish at Granite Lake?

Granite 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 New Hampshire's fish and wildlife agency, so check its current regulations before you go.

Granite Lake

Cheshire County, New Hampshire233 acresView map Directions

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

Max depth

115 ft

Bathymetric survey

Area

233 acres

Surface area

Shoreline

3 mi

Measured length

Impaired · Mercury
115 ft max depth
Public access

See the measurements Directions Where to stay

Granite Lake in Cheshire County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 115 ft. Surface area: 233 acres.

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Granite Lake is a 233-acre lake in Cheshire County, New Hampshire with a maximum depth of 115 feet (32-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

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

What Granite Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Deep water115 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Granite Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.

Whether Granite Lake is safe to swim in today is a call for the New Hampshire Department of Environmental Services and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Granite Lake

These are the measurements NHDES publishes for Granite 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 Granite Lake

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

Lake Details

Max depth

115 ft

Average depth

32.2 ft

Surface area

233 acres

Shoreline

3 mi

Public access

Yes

Listed by NHDES

Recreation & Access

Boat Landings

Yes

Public Access

Granite 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 Granite Lake

Compare lakeside cabins, hotels, and vacation rentals near Granite Lake in Cheshire County, New Hampshire — 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 Granite Lake

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Fishing Granite Lake

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

EPA Impairment Status

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

Causes of impairment

MercurypH / acidity

Designated uses not supporting: Aquatic life, Fish consumption.

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

Source: EPA ATTAINS assessment unit NHLAK802010201-05 · Official waterbody report

Nearby Lakes in Cheshire County

Center Pond3 miView →Bolster Pond2.4 miView →Tolman Pond3.7 miView →Silver Lake-Deep SpotMesotrophic—View →Childs Bog—View →Woodward Pond—View →

Frequently asked questions about Granite Lake

Where is Granite Lake?: Granite Lake is a lake in Cheshire County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Granite Lake?: Granite Lake in Cheshire County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 115 ft. Surface area: 233 acres.
Is Granite Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Granite Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.
How deep is Granite Lake?: Granite Lake has a maximum depth of 115 feet and an average depth of 32.2 feet. The lake covers 233 acres.
Are there boat ramps on Granite Lake?: Granite Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Granite Lake. Public access is listed as yes.
Can I fish at Granite Lake?: Granite 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 New Hampshire's fish and wildlife agency, so check its current regulations before you go.