So. I just found out how to measure distance in Wurm Online. 400 tiles= 1 mile.
The Brandywine river:
60 miles east + 120 miles south = 72,000 tiles total
Should I try to make it that long? There’s always the possibilty of running into an already existing village… So, what do you think? Should I use the default measurements? The tiles are pretty big, by the way: