ff1a1   10:48:22  E 2' 9"  N 3'24"    -3
ff1b1   13:31:18  W10'39"  S10'47"   377
f1b1    13:38:28  W10'39"  S10'47"   293
f1b2    13:50:38  W10'39"  S10'47"   513
f1b3    13:52:24  W10'39"  S10'47"   488
        13:52:24  W10'39"  S10'47"   488