When the twenty men who formed the vanguard of Zion's Camp left Kirtland, Ohio, on 1 May 1834, they could not know that one of their most lasting and intriguing contributions to Latter-day Saint history would take place, not on a Missouri battlefield but rather on top of a larger mound in Illinois. This elevation, located about one mile south of modern Valley City, has been called Naples-Russel Mound Number 8, Pike County. According to historian Stanley B. Kimball, this mound is a "typical prehistoric Middle Woodland mortuary complex of the Hopewell culture." There, on 3 June 1834, members of Zion's Camp located a few bones, including a broken femur and an arrowhead, approximately a foot below the earth's surface, and these remains became the catalyst for revelation to Joseph Smith regarding the skeleton's identity.