X2 what WeBJammin said. Shenandoah Valley is beautiful. We just purchased our TT in July and have been down to the Shenandoah Valley twice. There is some nice CGs down that way that should work for you. Gettysburg is also a great place to go, but finding a site in October might be a little hard with all the festivities going on up there.
2011 Rockwood Ultra Light 2604
Dodge RAM 1500 Larime 4x4, 5.7 HEMI
Nights Camped 2010 = 18
Nights Camped 2011 = 15