Maps and online map resources
Finding geospatial data and getting help using it
GIS stands for "geographic information system." GIS applications present geospatial information in interactive map visualizations, using a wide variety of tools and methods, that can be used for sophisticated analysis of real-world questions.
Geospatial data is an umbrella term – although there are several – for the combination of spatial and geographic data used in GIS. It refers to any data that includes a geographic association.
Data Services can help you with finding geospatial data, as well as other aspects of developing a GIS project.