BP 46359, 1949; Reports the establishment of USACE disposal areas in Wrangell Narrows. The approximate charted center is Lat. 56/49/40N., Lon. 132/55/06 W. (NAD83)  The bounding coordinates are as follows:
Lat. 56/49/50 N., Lon. 132/54/51 W. 
Lat. 56/4