Grid Point #: 002648 
Longitude:  -104.3327
Latitude:     21.4407
Contributing Station, distance (km).
ANIG   47.2
TNAM  107.6
IIEG  124.6
MPR1  127.4
UGEO  131.4
INEG  216.7
IZAC  231.3
IDGO  293.4