The U.S. government is obligated by treaty to provide certain services to tribal nations. Shutdowns force tribes to take on those costs.

The agency is partnering with groups aiming to add more buffalo to tribal diets and to create an heirloom seed repository, among others.

The American Rescue Plan provides $20 billion in aid, but problems with the previous CARES Act rollout have made tribes vigilant.

Tribal leaders say COVID-19 closures have had a devastating economic effect.

Dams are costly and have gone out of style. We also know more about their environmental impact.