 UNDETERMINED SOURCE, PREDATES STANDARD FROM 1966 -- SUBM PILES NOW CHARTED IN POSITION: 36 52 43.39 N, 076 20 41.28 W (NAD 83). UPDATED 3/14/2006 JCM.

F00540/07 - AWOIS Item # 13538 are placed outside the survey area, retain as charted.