Grid Point #: 001781 
Longitude:  -101.3426
Latitude:     18.6349
Contributing Station, distance (km).
TNCN   66.8
TNIF   71.0
TNMO  113.4
LZCR  117.3
UCOE  136.1
TOL2  193.1
MRCU  227.7
TNAT  352.9