Grid Point #: 011757 
Longitude:   -89.7214
Latitude:     39.1394
Contributing Station, distance (km).
MACO   41.7
SIAI   48.7
ILSD   68.2
KA35   71.4
API1   89.8
ILEI  100.4
KA12  106.4
ILPF  106.8