These polygon and line datalayers are available that represent the outline (boundary) of the Commonwealth of Massachusetts.
OUTLINE (25k coast): Shapefile
- OUTLINE_POLY and OUTLINE_ARC - contains the state outline with a 1:100,000 coastline
- OUTLINE25K_POLY and OUTLINE25K_ARC- contains the state outline with a 1:25,000 coastline
ProductionFor the both layers, MassGIS digitized 1:25,000 linework from U.S. Geological Survey mylar map sheets for land boundaries. For the OUTLINE layer, a 1:100,000 coastline was extracted from USGS Digital Line Graphs. For OUTLINE25K, the coastline from the 1:25,000 Hydrography layer was used. All processing was done in ARC/INFO.
AttributesThe OUTLINE_POLY and OUTLINE25K_POLY attribute tables contains this item:
|AREA_ACRES||Polygon area in acres|
|SYMBOL||1 = Inland boundary
4 = Coastline (100k)
|COAST||Y = Coastline (25k)
N = Inland boundary
|SYMBOL||0 = Coastline (25k)
5 = Inland boundary
MaintenanceMassGIS is maintaining these layers.
Last Updated 1/14/2008
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English (United States)