Continually changing, the Byway's landscape has shaped both the human and natural history of this region. Geological changes produced the 40,000-acre wetland basin of Cheyenne Bottoms. Salt seeps made many of Quivira's wetlands saline and thus attractive to particular wildlife species. Resources beneath the prairie-including petroleum, natural gas, and limestone-allowed communities along the Byway to grow and prosper. The tallgrass prairie that once overspread the region created outstanding topsoil that sustains an immense agricultural industry.