encoding  utf-8
survey entrance

#fudged as original data not available
#lengths arbitraryish depth is about right

centreline

cs OSGB:ST

fix 1 55710 52560 265
station 1 "Wigmore Swallet" entrance

data normal from to tape compass clino
  1 2 10 - down
  2 3 12 020 0
  3 4 10  - down
  4 5 20  200  -6.5

endcentreline
endsurvey