;Tham Huai Kun - entrance series & Western Branch #date 1986-05-04 ; K. Kiernan, D. Nichterlein, J. Spies, J. Taylor ;Data extracted from track file traced from 1986 survey ;Grade UISv2 0-0-A #Units prefix=MH0077B RECT Order=ENU #fix 1 415945 2174050 752 ;WGS 1984 from Google Earth #Note 1 Tham Huai Kun #Flag 1 /Entrance #Seg /Cave 1 2 3 -29 0 2 3 -4 -13 0 3 4 -5 -8 0 4 5 0 -7 0 5 6 -13 -14 0 6 7 8 -27 0 7 8 -2 -16 0 8 9 1 -15 0 9 10 -2 -3 0 10 11 -14 -6 0 11 12 -23 0 0 12 13 -5 -11 0 13 14 -3 -17 0 14 15 -11 7 0 15 16 -14 10 0 16 17 -32 -57 0 17 18 -2 -27 0 18 19 0 -25 0 19 20 -2 -30 0 20 21 -2 -20 0 21 22 -14 -24 0 22 23 -21 1 0 23 24 -19 -4 0 24 25 -4 -27 0 25 26 -12 5 0 26 27 -19 -54 0 27 28 -6 -9 0 28 29 6 -26 0 29 30 -8 -32 0 30 31 -12 0 0 31 32 -12 -13 0 32 33 -3 -18 0 33 34 -6 -21 0 34 35 -6 -19 0 35 36 -10 -16 0 36 37 -9 -20 0 37 38 -7 -6 0 38 39 -17 -3 0