PHOENIX—Since she was three years old, Mariah Gladstone says, she has had a passion for food.
After graduating from high school in northwest Montana, she studied environmental engineering at Columbia University in New York. During summers, she returned to her Blackfeet Nation home where she realized how disconnected Indigenous communities were from their traditional food systems.
"After I graduated college, I would take vacation days from my real-world job to go to food sovereignty conferences," said Gladstone, who is Blackfeet and Cherokee. "At one of those conferences, I said, 'Someone reall...