The Register Cliff State Historic Site is made up of cliffs that are composed of sandstones. It is the place where ancient migrants get to scrawl their names as they pass by it. Majority of the names can be traced back with dates during the mass migration that happened in the middle part of the 19th century. It is situated in the southern part of Guernsey that is about two miles past the turn for the Oregon Trail that is yet another historical site.

This site preserves the main site where the settlers scratched out their names along with some important messages that they left behind. You can also find the Wagon Wheel that is located nearby.