This polygon layer represents the boundary of neighborhood conservation areas (NCA).
The Neighborhood Conservation Area geodatabase consists of three feature
classes, NCA_ARC, NCA_POLY and NCA_BUFFER. The NCA feature classes
delineate the areas of Arlington County where a conservation area have been
defined, and denotes those with County-approved conservation plans.
Annotation identifies the areas by name. The NCA_BUFFER feature class also
shows the conservation areas, but uses a “buffered” line, or a band of color (or
fill pattern) inside the perimeter.