This map is made thanks to Lantmäteriet (Sweden's government geographic data site) for making the raw Minecraft map of the entire Sweden. It contains the road counterparts in the real world, terrain, the rivers and lakes. What i just did, is importing the map into WorldPainter, populated it with trees and removed the unnecessary blocks in it. This map consists of the southern part of North Bothnia, which is about 10,000 km2 large, but if you divide it by 8 squared, you'll get the real size in Minecraft, which is about 156 km2 large, or about 700,000 chunks. If you were going from the northern end to the southern end of the map, it would be about 20,000 blocks.