- Welcome to your National Grasslands! These wind-swept seas of grass and wildflowers -- four million acres in all -- have witnessed the pageant of the frontier, the Dust Bowl, and the dramatic recovery into a great national treasure. Come visit the 20 publicly-owned National Grasslands administered by the USDA Forest Service. The Grasslands Story Grassland Locator USDA Forest Service homepage ...www.fs.fed.us/grasslands