Earwa is actually some four or five times the size of Europe. I put that allusory analogue of
the Norwegian coast along the top as a sneaky way to gauge the land masses involved.
Does that mean that that allusory analogue, which is the cost west of the Demua Mountains, 5x the size of its Norway counterpart, or the same size?
That equivalent Norwegian coastline is roughly 400 kilometers. So the short nearly vertical North/South edge of the Demua is either 400 km or 1600 to 2000 km.
This either makes the north/south length of earwa either 2000 km (roughly the north/south length of the USA), or 8,000 to 10,000 km (roughly the distance of the southern tip of South America to the Northern most point of Main, USA.
EDIT:
If it is really 10,000km, then Earwa is either a Pangea-like supercontinent, or the planet is just massive.