How likely is it that mass graves will be found at American Indian boarding schools?

by quintol

In light of the graves discovered at Canadian Indian residential schools, is it likely that Indian boarding schools in the U.S. also have mass graves? Did Indigenous children have similar experiences in American Indian boarding schools to those at Canadian Indian residential schools?

Snapshot52

Please refer to this recent Monday Methods post. The beginning notes some cases in where unmarked and/or mass graves have been located at boarding schools in the United States.