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72NHSeaplane Base

BARNDOOR ISLAND

ALTON, New Hampshire

Private usePrivate504 ft MSL

Seaplane Base Information

Facility Type

SEAPLANE BASE

Elevation

504 ft MSL

Ownership

Private

Use

Private use

Coordinates

43.5539, -71.2323

County

BELKNAP

Water Lanes

IDLengthWidthSurface
11W/29W4,086 ft500 ftWATER

Floatplane intelligence for 72NH

Live weather, decoded NOTAMs, AI briefings. Included in every AeroCopilot plan from $7.99/month.

Source: FAA NASR (seaplane base facility, water lanes, frequencies). Updated 2026-05-12 15:38 UTC.