Arna Township is tucked perfectly into the corner where the St Croix River first becomes the border between Minnesota and Wisconsin - about two hour's drive north of the Twin Cities, and an hour's drive south of the Twin Ports of Duluth and Superior. Today, the area is used mostly as a retirement and recreational community. Take a look at the Comprehensive Plan for the township, where you can find a brief history of the area, including census and other data going back to 1910.
Some prominent features of the area include: