At just 30 years old, National Geographic photographer Joe Riis has devoted his life to documenting—for the first time—the Grand Teton pronghorn migrations in the American West. His work has helped to create corridors and road crossings that allow these animals the freedom to move as they have for thousands of years.
At just 30 years old, National Geographic photographer Joe Riis has devoted his life to documenting—for the first time—the Grand Teton pronghorn migrations in the American West. His work has helped to create corridors and road crossings that allow these animals the freedom to move as they have for thousands of years.