Maine /

Penobscot Bay

Bay in Maine · 184,962 acres · near Belfast, Brooksville, Islesboro, Northport

Penobscot Bay is a 184,962-acre bay near Belfast, Brooksville and Islesboro in Maine, with 3 public boat ramps and 10 carry-in launches listed here. 10 launches are listed as free. 1 is limited to residents or permit holders.

Channel depths in feet from the Army Corps' surveys of October 7, 2025. Not for navigation.

Channel surveys

  • Belfast Harbor
    Condition survey of October 7, 2025 by the New England District. Least depth in the channel (13-Foot Anchorage): 5 ft below mean lower low water (MLLW); project depth 13 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 Penobscot Bay

Community

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

Wikidata: Q754365