TV Ancient Yellowstone - Season 1 Episode 3 : The Petrified Forest Ancient Yellowstone - Season 1 Episode 3 : The Petrified Forest 2/10 by 1 users Greater Yellowstone sits on top of a volcanic hot spot where devastating geological events unfolded. The result? A bizarre cemetery of fossilized forests that contain the remains of trees that died from molten lava, ash, and mud around 50 million years ago. Details Casts Posters Images Title Ancient Yellowstone - Season 1 Episode 3 : The Petrified Forest 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 , Episodes List Ancient Yellowstone Season 1 :Episode 1 Alien Life Alien Life 2021-03-02 Yellowstone National Park is famous for its unparalleled beauty but there’s much, much more happening in this breathtaking spot. Ancient Yellowstone Season 1 :Episode 2 Frozen Archeology Frozen Archeology 2021-03-02 Yellowstone National Park is famous for its unparalleled beauty but there’s much, much more happening in this breathtaking spot. Ancient Yellowstone Season 1 :Episode 3 The Petrified Forest The Petrified Forest 2021-03-02 Yellowstone National Park is famous for its unparalleled beauty but there’s much, much more happening in this breathtaking spot.