Skip to main content
LakeQuality

Granite Lake

Ketchikan Gateway County, Alaska26 acresView mapDirections

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

Area
26 acres
Surface area

Granite Lake in Ketchikan Gateway County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 26 acres.

Loading map…

Granite Lake is a 26-acre lake in Ketchikan Gateway County, Alaska.

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

Get alerts for Granite Lake →

Water quality measurements for Granite Lake

These are the measurements Alaska DEC 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

Surface area

26 acres

No bathymetric survey has been published for Granite Lake, so its depth is not documented here.

Stays via Stay22

Stays near Granite Lake

Compare lakeside cabins, hotels, and vacation rentals near Granite Lake in Ketchikan Gateway County, Alaska — 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

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Follow Granite Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Granite Lake

Nearby Lakes in Ketchikan Gateway County

Frequently asked questions about Granite Lake

Where is Granite Lake?

Granite Lake is a lake in Ketchikan Gateway County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.

What is the water quality of Granite Lake?

Granite Lake in Ketchikan Gateway County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Surface area: 26 acres.

Measurements on this page ↑

Is Granite Lake safe to swim in?

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

Swimming on this page ↑

Where this data comes from

Measurements for Granite Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.