Iowa Geography Question

Acylum

Well-Known Member
Nov 18, 2006
14,322
15,011
113
1752950339815.png
Why do the fourth and sixth tiers of counties have those strange juts on their western borders?
 

hoosman

Well-Known Member
Sep 4, 2006
2,126
1,618
113
Davenport
The Missouri River (Western Border) flows diagonally between those two tiers. In order to maintain perpendicularity, a small amount of the shift of the Western border is allocated to each of the counties to the east.