latitude 42° 20' 23.3" N
longitude 70° 57' 16.1" W
The island is now attached to the mainland, and a walking trail surrounds much of the island. The island is part of the Boston Harbor Islands park, and you can drive to the island from where you can see the lighthouse. It currently is only an automated light on a post, at one time it was a sparkplug design. deer island ARLHS # USA-1096 (J 0324)
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