Black stations (most useful): 
-70.100E    41.476 N
-70.253E    41.490 N
-70.314E    41.410 N
-70.372E    41.306N

Extra station further east, at the mouth of the sound, in Red:
Right:     -69.889E    41.482N 

Blue stations (useful):
-70.157E    41.343 N
-70.411E    41.501 N
-70.597E    41.506 N
-70.458E    41.311 N
-70.540E    41.298 N
-70.642E    41.285 N
-70.591E    41.210 N
-70.522E    41.123 N
-70.465E    41.184 N
-70.422E    41.243 N

Green stations (could eliminate) 
-70.093E    41.418 N
-70.071E    41.529 N
-70.182E    41.584N