The Oglala National Grassland is a United States National Grassland in the northwest corner of Nebraska. It is in northern Sioux and northwestern Dawes counties, on the borders with South Dakota and Wyoming. It is in size and is one of the small handful of National Grasslands administered by the US Department of Agriculture's Forest Service.
Setting
The Oglala National Grassland features a landscape of shortgrass prairie and dramatic badlands formations. It is Nebraska's only region of the Pierre Shale.
Deciduous trees common to the Oglala National Grassland include the eastern cottonwood, the green ash, and the peach leaf willow. It includes the native range of the American bison. Over one hundred birds and fifty mammals have been observed in the Oglala National Grassland. The historian Francis Moul (1940-2023) wrote: