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(ESRI Shapefile with ArcGIS .lyr and ArcView 3x .avl)
The state barrier beach data layer was compiled by the Resource Mapping Project staff at the University of Massachusetts, Amherst for the Massachusetts Coastal Zone Management Program. The ArcSDE layer is named BARRIERB_POLY.
Interpreted paper USGS Topographic Maps.
A polygon coverage was built by digitizing interpreted feature boundaries not including the shoreline. The shoreline used in this coverage is from the MassGIS 1:25,000 source.
The layer's polygon attribute table has the following items:
Item Name Wdth Oput Type Comments 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.
Last Updated 5/30/2007