
 HISTORY
  T-9142/1955--UNIDENTIFIED DASHED LINE FEATURE, 100M IN DIAM., SHOWN IN ì
60-13-19N, LONG.147-57-22W (NAD 27)
  LNM32/83--8/9/83; CHART CORRECTION, ADD ROCK AWASH "PA" IN POS. ì
LAT.60-13-19N, LONG.147-57-22W (NAD 27). DERIVED FROM FEATURE