Mayflower on the Arkansas River
Here is another map. This is the Arkansas River upstream of Little Rock, around the town of Mayflower. The west border has two large customs houses, the south border has three large customs houses, the east border has two large and one medium, and the north border has one large and one medium custom house.
I hope you enjoy the map.
Map data is from https://heightmap.skydark.pl/beta/
