Family of famed poet to breach Shadehill monument and unlock century-old mystery

After gaining federal permission, the family of a famed poet/author plans to trek to a remote corner of South Dakota later this month to retrieve a century-old monument dedicated to a heroic mountain man.

The goal is to finally unlock a mystery hidden inside the monument, erected at the direction of writer John Neihardt as an “altar to courage” of the subject of one of his poems: Hugh Glass, who cr…