The 1903 windmill stands near the spot where Kansas, Oklahoma, and Colorado meet. Since the early 1800s, the actual location of the junction was hotly disputed - surveys had contained errors and markers had been lost in drifting sand. A marker from the 1903 Carpenter survey is located 3/4 mile north, but acceptance of this survey was vetoed by President Roosevelt in 1908.
With the advent of satellite technology, the true geographic corner was marked here in 1990 by the Bureau of Land Management. The survey marker is now a reference point for satellite-based computerized mapping and is secured 4’ below the brass plate in the middle of the road. (In 2017 a windstorm tore down the windmill but the brass plate is still intact).