Swans and geese in the Yellowstone River in Hayden Valley%2C named for 1871 expedition leader Ferdinand Vanderveer Hayden%2C the eventual namesake of Yellowstone%27s Hayden Valley. Photo by Diane Renkin%252FNPS
Swans and geese in the Yellowstone River in Hayden Valley%2C named for 1871 expedition leader Ferdinand Vanderveer Hayden%2C the eventual namesake of Yellowstone%27s Hayden Valley. Photo by Diane Renkin%252FNPS