Title from portfolio.
Title on map sheets: Census tract/block numbering area outline map (1990).
Distributed to all Regional depository libraries and to Virginia depository libraries selecting Item 156-K-46.
Shipping list no.: 93-0007-P.
"Base map generated using digital data obtained at 1:100,000-scale through a cooperative program with the United States Geological Survey, Department of the Interior."
Includes indexes.
"1990 CPH-3-48."