USFS Digital 7.5' Ortho Quadrangle, header format fs1 QUADRANGLE SITDOWN MOUNTAIN WDNR row/col 553 ONLINE_FILE_NAME 48118d4_1991.tif URL http://rocky.ess.washington.edu/data/raster/usfs/okanogan/images/48118d4_1991.zip MAP_COLLECTION_CDROM_NAME G4281 .A4 S40 U5, volume 257 d448118.bil PIXEL_SIZE 2 meter SOURCE_PHOTO_DATE 1991 5 September PRIMARY_HORIZONTAL_DATUM NAD27 NAD83 - NAD27: -79.8400 208.4800 PROJECTION UTM ZONE 11 UNITS meters NAD27_UPPER_LEFT_PIXEL_CENTER 388617.0000 5373074.0000 PROJECT COL PHOTO_SYMBOL NAPP91 PHOTO_SCALE 40000 GEOLOC_ZONE 1 GEOLOC_# DG05