Interior Secretary Deb Haaland applauds Biden apology for Indigenous boarding schools

She also investigated those who never made it home, and found that hundreds of children had been buried at unmarked sites far away from their homes.

WASHINGTON — Haaland went on a reservation listening tour to hear from tribal elders and descendants of people who attended these schools as part of a federal investigation into the government's boarding school programs and the reported physical and emotional abuse as well as death that took place.

ABC News' Justin Gomez contributed to this report.