Structure Lines. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC and the surrounding states of...
This layer shows the location of Walls and Fences on the State Road Network. The Wall or Fence are a continuous vertical structure usually of brick, stone or wood, used as a...
This data set was created to act as a basis for public and private institutions to improve their policy and decision making; promote economic development; and enhance the quality of life for residents
