Grid Point #: 004939 
Longitude:  -108.1492
Latitude:     29.6425
Contributing Station, distance (km).
USMX  149.2
YESX  159.3
TNCU  186.9
CHIH  228.0
AZCO  258.6
SG33  284.2
CHIR  287.3
TXEL  290.1
NMDE  294.6