When you hit 29 as you come off 80 heading north, look for Iowa 175 hiway. East of 29 just as you exit is a nice RV park that is great for an overnite or a couple of days called "On-Ur-Wa". I think it was named this because the town just on east of there is called Onawa.
This RV park is set in a grove of Cottonwoods and in the spring the ground looks like it is covered in snow. It is FHU with a fair wifi signal (park as close as you can to the office) If you want a satellite signal, park on the back row. We have stayed there several times when going to and from SD. Great people to talk with. You might get offered some home grown tomatos depending on the time of year, or might be offered a sample of the wine they sell. ;)
The sites are pretty level on gravel. We will stay there again when we head back that way.
