Maine /

North Atlantic Ocean

Sound in Maine · 14,243,617 acres · near Deer Isle, Freeport, Hancock, Jonesport

Aerial view of the North Atlantic Ocean at Petit Manan Island, September 2021
Aerial view of the North Atlantic Ocean at Petit Manan Island, September 2021 Photo: USDA Farm Service Agency, NAIP · Public domain · via USGS The National Map

North Atlantic Ocean is a 14,243,617-acre sound near Deer Isle, Freeport and Hancock in Maine, with 3 public boat ramps and 6 carry-in launches listed here. 7 launches are listed as free.

Channel depths in feet from the Army Corps' surveys of June 16, 2026. Not for navigation.

Channel surveys

  • Harraseeket River
    Condition survey of June 16, 2026 by the New England District. Least depth in the channel (8-Foot Anchorage): 4.7 ft below mean lower low water (MLLW); project depth 8 ft. Survey sheet (PDF)

US Army Corps of Engineers hydrographic surveys, from eHydro. A survey shows the bottom on the day it was made; channels shoal after high water and change with dredging. Not for navigation.

Boat launches on North Atlantic Ocean

Community

Where people who fish, boat and paddle North Atlantic Ocean talk about it. Lake associations, clubs and local groups will be added as we find them.