Frequently Asked Questions
|What is GIS?
|Geographic Information System
|What is a Shapefile?
|Shapefiles are GIS files that consist of .shp, .dbf, .shx, and .prj files.
|What is Metadata?
|Metadata is “data about data”. These are xml, txt files that describe the GIS layers.
|What is ArcGIS Explorer?
|ArcGIS Explorer Desktop is a free GIS Data Viewer program from ESRI.
|What is ArcGIS?
|ArcGIS is a purchasable GIS mapping software by ESRI. For more information, go to ArcGIS by ESRI.
|What is ArcGIS Online?
|ArcGIS Online is a cloud-based GIS web mapping system.
|Which version of GIS layers should I use?
|If you are unfamiliar with using GIS files, we recommend using the NAD83, shapefile format.
|What is a .zip file?
|A .zip file is a compressed file consisting of one or more files with file sizes smaller than the originals. Zip files are compressed or uncompressed using Zip programs such as WinZip or PKzip.