TV Ancient Yellowstone Ancient Yellowstone 2/10 by 1 users Yellowstone National Park is famous for its unparalleled beauty but there’s much, much more happening in this breathtaking spot. Details Casts Posters Images Title Ancient Yellowstone Alternative Titles First Air Date 2021-03-02 Last Air Date 2022-02-21 Number of Episodes 6 Number of Seasons 2 Genres Documentary, Networks CuriosityStream, Casts Plot Keywords ,