The fort site, which occupies roughly two acres, commands the western approach to the Harbor. The present structures were built in 1863 by the Department of War. Previously forts were built here in 1644, 1706, and 1794.
Site typeMilitary
Coordinates42.5271, -70.8670
Difficulty · ModerateSome effort — hiking, navigating fences or rough terrain.
Hazard · YellowStandard caution — typical abandoned-structure risks: weak floors, debris, broken glass.
Light todaySunrise 05:55 · sunset 19:37 (local) — golden hour is the first and last hour of that window
Conditions today65–83°F · 47% precip chance · wind to 9 mph
Vestige documents abandoned & historic places for education and preservation. Always obtain permission before visiting and follow local law.