Grid Point #: 001864 
Longitude:   -99.4166
Latitude:     18.8507
Contributing Station, distance (km).
MRCU   23.7
YAIG   36.8
TOL2   54.7
UNIP   57.0
TNAT  165.7
TNIF  269.1
LZCR  308.5
TNNP  387.7