A polygon coverage was built by digitizing interpreted feature boundaries not including the shoreline. The shoreline used in this coverage is from the 1:25,000 paper USGS Topographic Maps.
The layer's polygon attribute table has the following items:
|BBPOLYID||4||5||B||Arbitary numeric code to identity unique features.|
|BBNAME||8||8||C||State designated alpha-numeric code for each barrier beach unit.|
MCZM maintains the data.