The land had been cultivated and lived on for millennia when geologist Ferdinand Hayden came upon the astounding Yellowstone "wilderness." It wasn't long before the federal government declared it a national park, to be preserved in perpetuity for the enjoyment of all. Ostensibly. How did Yellowstone go from being an important home, hunting ground, thoroughfare and meeting place to being a park? Megan Kate Nelson, author of Saving Yellowstone, Mark David Spence, author of Dispossessing the Wilderness and Alexandra E. Stern, historian of Native peoples and Reconstruction are our guides to this rocky start.