Grid Point #: 003873 
Longitude:  -112.8322
Latitude:     26.6208
Contributing Station, distance (km).
TNBA  270.7
TNHM  329.2
SA27  329.7
IPAZ  372.7
YESX  432.5
MSD1  496.7
PLCX  608.4
IMIE  688.7