Data Resources

You can search for data within ArcGIS, or download datasets from other sources and upload them to your maps. Below are some other data resources.

There are a lot of different issues and challenges that can come up when working with data. Even navigate the repositories can be difficulty. Therefore, please do not hesitate to contact Melanie Hubbard, Digital Scholarship Librarian, with any questions.

Data Repositories

File Formats

To upload data to ArcGIS, it must be geospatial (GIS) and must be in one of the following formats:

    • Shapefile (ZIP archive containing all shapefile files)*
    • CSV or TXT files with optional address, place or coordinate locations (comma, semi-colon or tab delimited)
    • GPX (GPS Exchange Format)
    • GeoJSON (open standard format for simple geographical features)

*As we discovered this semester, certain web browsers will automatically unzip zip files when they are downloaded. This is why many of you had trouble uploading your shapefile data in the first exercise. If this happens, you will need to re-zip the file prior to uploading it to ArcGIS.

To “zip” a file on a Mac you hit the control key and click on the folder. Then you select compress. On a PC right-click the folder, select “Send to,” and then select Compressed (zipped) folder.