survey 1959 centreline #source UBSS Library copyright 2011 UBSS date 1959 units tape feet data normal from to tape compass clino ignoreall 0 1 125 090 0 1 2 33 210 0 2 3 25 202 0 3 4 18 222 0 4 5 40 169 0 2 6 10 330 0 6 7 8 040 0 7 8 15 010 0 8 9 12 010 0 9 10 10 280 0 10 11 10 010 0 2 12 10 170 0 12 13 12 080 0 13 14 18 210 0 14 15 18 225 0 15 16 15 230 0 16 17 24 205 0 17 18 17 200 0 18 19 25 210 0 19 20 15 210 0 20 21 10 190 0 21 22 40 254 0 #22 is survey point 53 of main chamber endcentreline endsurvey