Excelsior, Atchison County, Missouri

Excelsior is an extinct town in Atchison County, in the U.S. state of Missouri. The GNIS classifies it as a populated place. It was founded in 1857. It was located in the southwest section of Benton Township section 21.

The community took its name from the Excelsior Wheel Mill on the Missouri River. Besides the mill, the community contained a schoolhouse.

In 1869, the Excelsior wheel took the place of an overshot mill in section 33 of Benton Toiwnship, and eight years afterwards, in 1877, a turbine wheel was added. The average grinding capacity of this mill was eighty bushels per day with the new mill at that location. Nothing stands at the original location as the wheel was removed leaving only a dilapidated frame of the wheel house as reported in 1881.