I have added a layer without spatial reference to a Blank Map document.

Which coordinate system is the data frame set to?

  • 1
    Welcome to GIS SE! As a new user please take the tour to learn about our focused Q&A format. A good question should include a degree of research and attempt. What happened when you tried adding your own no spatial referenced layer to ArcMap?
    – Midavalo
    Feb 21, 2018 at 4:51

1 Answer 1


To determine this just add a shapefile with no PRJ file to a Blank Map, and then check the Coordinate System tab of the Properties for the Layers data frame to see that it is:

No coordinate system.

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