encoding  utf-8
survey R1

centreline
cs OSGB:ST
date 1951 12 28
#Source WIS survey book 1 pp55/6

data normal from to compass tape clino ignoreall
units tape feet
#calibrate compass +11.5
calibrate compass +1.20
#altered to allow for automatic mag dev correction

fix H 47460 54470 128
station H "Reservoir Hole" entrance

H  I  184.16  15.0  -16.5
I  J  208.50  7.3  -11.0
J  K  201.50  24.3  -18.0
K  L  194.00  16.8  -21.5
L  M  185.00  17.3  -15.5
M  N  199.00  41.7  -20.5
N  O  198.00  13.8  14.0
O  P  200.50  36.0  -12.5
N  N1  -  0.7  up
N1  Q  006.16  24.5  -22.5
#Q  R  191.00  4.5  -6.0
#R  S  293.00  34.2  -72.0
#removed as passage has been backfilled

endcentreline
endsurvey