Large animal migrations are among the most primordial rhythms of life on earth, and, as scientists have recently discovered, the American West is home to some of the planet's most magnificent migrations. Yellowstone Migrations: Preserving Freedom to Roam takes readers into the heart of the vast, wild landscapes found in America's West, and shows us that it is possible to preserve the natural heritage of this iconic region and protect these last intact natural wildlife corridors--so that these animals can carry out the migrations that are essential to their survival.