Pillsbury Crossing is a natural limestone ledge on Deep Creek in Riley County, Kansas, where a rock shelf once provided a ford for pioneers before ending in a small waterfall about 40 feet wide with a drop of roughly 5 feet on the way to the Kansas River. The site was named for Josiah Pillsbury, a nearby Free-State settler who homesteaded there in 1855 and took part in Kansas Territory politics through the Free-State Topeka Legislature and the unsuccessful Leavenworth Constitutional Convention. Today, the crossing and waterfall lie within the Pillsbury Crossing Wildlife Area.