Sally Mann is the winner of the ninth Prix Pictet, whose theme this year is fire, for her Blackwater series. She traveled around the Great Dismal Swamp in the United States, a place teeming with dense vegetation, snakes, insects, and predators. Many runaway slaves sought refuge there on the road to freedom. She photographed a landscape consumed by flames, which seems to echo the resurgence of racial tensions. More broadly, Blackwater allowed the artist to explore her practice of landscape photography.