     
HISTORY
REVISORY SURVEY 1941--DANG SUBM WK; SCALED AT 1:15000 FROM CHART 14974 (NAD   
 1902) IN LAT 46-35-56.4N, LONG 90-52-37.0W. (ENTERED 3/84 RWD)               
MAR--10/84, OPR-Z137-WH-84; DANG SUBM WK (COV 5.1FT) WAS LOCATED BY RANGE/AZ