Geological Tour
SedimentaryrockformationsintheDakotaPrairieGrasslands,likethosefoundintheBadlands,developedovermillionsofyearsthroughthe ...,ThegeologyoftheBadlandsisaresultofmillionsofyearsofgeologicalprocesses,includingdepositionofsediments,erosion,andweatheri...。參考影片的文章的如下: