Please see some images that I provided for reference. :)
Please see some images that I provided for reference. :)
Please don't forget to hit 'UPVOTE' below my comments if what I have provided helped you with your problem.
GEOMAP can only be used when there is a coordinate system assigned to the drawing. This only applies to AutoCAD Map 3D and Autodesk Civil 3D products.
How To Do 3d In Autocad
Let me know if anything. Thanks & Good luck.
How To Work On Autocad 3d Design
Step 2:
Then the image below shows a dropdown option of the UCS planes. Choose the plane that you desire to make your 3D/2D appear on it.