survey GreenGroove
centreline

#Fudge file invented by GJM to include this short cave on the plot.
copyright UBSS 2010

fix 1	119300 203450 245
entrance 1

data normal from to compass tape clino ignoreall

1	2	225	50	0
2	3	180	50	-1
2	4	0	50	0

endcentreline
endsurvey