system filename: cb100sl approx. filesize = 1.48 mb
Revisions and updates to this layer include:
4.) filename: cb100sl0306 The March 2006 update to this layer
consisted of correcting the boundaries for Mecklenburg and Iredell
counties according to Law 2001-429, Senate Bill 35.
3.) filename: cb100sl1203 The December 2003 update to this layer
consisted of correcting the boundaries for Carteret and Jones
counties according to DOT county boundary updates.
2.) filename: cb100sl1298 The December 1998 update to this layer
consisted of projecting the data from NAD27 datum, State Plane
projection, units of measure feet TO: NAD83 DATUM, State Plane
PROJECTION, UNITS OF MEASURE METERS. This was done to comply with
the NC Geographic Information Coordinating Council's
"Statement of Direction for North Carolina Corporate Geographic Database
Horizontal Reference, Datum and Unit of Measure". This reprojecting
was done in various ways depending on the data type and content.
Vector data was projected using the 'project' command in ESRI's Arc
software and topology was cleaned and built based on coverage needs.
Raster data was projected using ESRI's Grid module and various steps
as applicable.
1.) filename: cb100sl298 The February 1998 version was the first
archived version of this data.
(this file was previously named nc100.cb.sl)
A DOT-based county boundaries coverage at approximately 1:126,720 also
exists in the Corporate Database. This DOT coverage should be used in
conjunction with other data layers that were developed (i.e., clipped)
using this coverage. Some of these coverages are:
General Geology (1:250,000-scale)
General Soils (1:250,000-scale)
1980 Census Boundaries/Population
Federal Land Ownership