As an amateurish calligrapher with specialty in seal stone carving, namely, Zhuanke 篆刻. I only tried carving several maps, and I will carve more in the future.
Below is a map of Wisconsin with a star symbol representing Madison:
Below is a map of Zibo City with county-level administrative boundaries and neatline:
Below is a map of China with concaved "GIS" on it (together with a regular calligraphic seal):