Grid Point #: 001785 
Longitude:  -100.4306
Latitude:     18.6349
Contributing Station, distance (km).
TOL2  110.5
MRCU  133.2
TNMO  140.4
MXAT  140.9
YAIG  145.8
TNIF  159.7
TNCN  162.6
LZCR  200.1
TNAT  258.3