アメリカ内務省さんのインスタグラム写真 - (アメリカ内務省Instagram)「Rising out of the grassy prairies of #SouthDakota, the striped and wrinkled rock formations at Badlands National Park seem so strange. Formed from sediment at the bottom of an ancient sea and left by long dry rivers, the rocks were built up and carved away over millions of years. Cemented in the colorful rock layers, a wild assortment of fossils again test visitors' imaginations. Access to the park's north unit has increased, so people can roam this amazing place as far as their feet and fantasies can take them. Photo @BadlandsNPS by #NationalPark Service. #Badlands #GreatOutdoorsMonth #usinterior」6月11日 9時05分