SURVEY SAMPLE LAT LON COLOUR NATQUA NATSUR SORDAT SORIND DESCRP PRMSEC REMRKS BEGIN_OBSTIM ORIG_DATUM DEVICE SOURCE H06478 19366 52.800746 -169.856607 Black Cinders 1-Jan-39 mggal AFSC H06478 19367 52.409562 -170.461942 Black Broken Lava 1-Jan-39 mggal AFSC