Sources of GIS Data . Definition:. What is data? Data is anything in the form of Charts Tables Text Maps Photos Imageries, etc. . Examples of data. Data vs. Information. Data are collection of facts Data are observed/recorded It simply exists and does not have meaning of itself.
of GIS Data
In MA (MASS GIS): www.mass.gov/mgis/
In VA (VGIS): www.vcgi.org
www.gis.ny.govMost of the GIS data are now available online from respective State GIS data clearing house
You have to use Import function in ArcGIS
to make an ArcInfo interchange file usable!
Feature class provides updated length of line feature
You can easily get the total length of Roads in NY!
Feature class provides updated area & perimeter of each polygon in a Geodatabase