These sites all have versions of Great Circle map generating software
which may be centered upon your location. The last site also has
a wealth of additional free software for many, many radio applications.
Lyn, W4WDN, QTH Antenna mail list,
March 13, 2000
The following web sites helps you to determine your latitude and
longitude coordinates, the distance and direction from most any
place to most any other place, and the difference between true North
and what your accurate compass shows.