@box said:

Import the old map as a material and paint it on the terrain.

Will be preserved coordinate system and location?

I would like to open a *.kmz file with a old map of 1870 in Sketchup. It was possible to open old map in Google Earth and then in Sketchup use the tool "Get current view". This tool was replaced by the tool "Get location", but this tool upload only an up-to-date map which is available in Google Maps. This map is unusable for me. How I get the old map to Sketchup?