Scale approximately 1:48,000 ; Polyconic projection (W 77°32ʹ12ʺ--W 77°02ʹ28ʺ/N 39°03ʹ25ʺ--N 38°36ʹ20ʺ).
Note:
"Copyright 1976 by Fairfax County Mapping Division." "Compilation date: January 1, 1976." Awarded honorable mention in 1976 American Congress on Surveying and Mapping Map Design Competition.