UA Census Physical Features, 2000 - District of Columbia

These features are neither transportation nor hydrographic in nature but may be used to determine boundary lines. The single Feature Code in this layer is E10 (Fence line locating a visible and permanent fence between separately identified property).

Additional features which may be identified in this, or other layers, include: Topographic Feature:Topographical features that may be used as boundaries or as a reference for an area. The Census TIGER database contains topographic features used to define the limits of statistical entities in locations where no other visible feature can be identified. Other Topographic Feature: Mountain Peaks, Islands, (identified by name), levees, an embankment, as of earth or concrete, used to prevent a river or other body of water from overflowing.