encoding  utf-8
survey R8

centreline
cs OSGB:ST
date 1969 10 17
#Source WIS survey book 2 pp65/6

data normal from to compass clino tape ignoreall
units tape feet
#calibrate compass +8.16
calibrate compass -0.33
#altered to allow for automatic mag dev correction

486  487  186.83  -29.0  23.7
487  488  126.00  -1.83  17.7
#488 candle 1" high on top of larger stalagmite in middle of entrance to Potter's Heaven
487  489  197.5  -14.5  20.9
489  490  175.00  -22.5  14.8
490  491  237.66  -37.16  8.4
491  492  211.33  -20.0  14.9
492  493  158.5  -10.5  17.3
493  494  191.66  -27.33  11.3
494  495  160.5  -12.75  38.2
#495 drillmark at bottom of s. end of small aven

endcentreline
endsurvey R8