easting,northing,name,elevation
50,5,0,0
150,5,1,0
225,5,2,0
251,5,3,0
270,5,4,0
375,5,5,0
401,5,6,0
420,5,7,0
575,5,8,0
601,5,9,0
620,5,10,0
875,5,11,0
901,5,12,0
920,5,13,0