Just a quick note to Bill's posting above.
Grovetown is close to Stone Mountain and in that area, the general charts for declination, are almost useless. When I was flying out of there, a quick check of the charts showed some crazy things going on. He would be better to use the sun charts from a site like this:
Sun or Moon Altitude/Azimuth Table
to find his true south.
Just my 3¢
Lost