Grid Point #: 012322 
Longitude:   -77.6250
Latitude:     39.7869
Contributing Station, distance (km).
PACH   16.5
PACB   16.7
PAFC   18.2
LOYQ   18.6
DEW5   20.4
DEW3   29.2
PAAC   34.5
PAFM   36.0