Grid Point #: 004109 
Longitude:  -103.1870
Latitude:     27.2683
Contributing Station, distance (km).
TXPE  279.2
TXEP  310.5
TXDR  323.2
CHIH  324.2
TXSN  329.6
MTY2  334.1
IDGO  383.3
IZAC  502.6