My software puts out statistics. When I made this map this is one of the outputs:
Total Area (approximate): 170.4 Sq. Kilometers (12.4 km X 13.8 km)
I did also trim 3600 meters off of the bottom of the map. This is because it was so far above sea level that a lot of material would be wasted it it was 3D printed. So, the length from the highest peak on the map to the bottom surface plus 3600 will be the scale height in meters.
Let me know if that is enough information.