United States, Massachusetts, Off Cape Ann, Eastern Point Light, W. by N. 33 miles, Boone Island Light NNW. 42 1/2 miles, White Island Light NW. 1/2 N. 42 miles 2 miles W. of sta. 187
42.5583 -69.975 +-1850m. WGS84
original ex Argus 1990s DMS georeference that lacked radius was updated to reflect generic 1 km precision for minutes, 111 km for degrees only