The Sny, almost 120 years old, is one of seven levees between the Iowa border and St. Louis still holding.
Walker was born in Oakland, California and raised in the state of Minnesota near the Iowa border.
On most of its length in the state, it is close to the Iowa border and fairly parallel with it.
It crossed the Iowa border and met up with the McGregor & Western line.
Also, from Milford east to the Iowa border, the highway is closely paralleled by Interstate 80.
Highway 20 was designated and signed in 1920 from the Iowa border near Canton to its current northern terminus.
The company is based in Dakota City, Neb., just across the Iowa border.
Iowa borders to the south and South Dakota to the west.
The southern corporate limit of the town is defined by the Iowa border.
From there, U.S. 63 continues north on two lanes to the Iowa border.