DescriptionGreat Sand Dune (29DEC17) (16).jpg English: Great Sand Dune showing the (now) petrified sandstone (as seen) 29 December 2017 Date 29 December...
DescriptionGreat Sand Dune (29DEC17) (9).jpg English: Great Sand Dune showing the (now) petrified sandstone (as seen) 29 December 2017 Date 29 December...
DescriptionGreat Sand Dune (29DEC17) (11).jpg English: Great Sand Dune showing the (now) petrified sandstone (as seen) 29 December 2017 Date 29 December...
DescriptionGreat Sand Dune (29DEC17) (10).jpg English: Great Sand Dune showing the (now) petrified sandstone (as seen) 29 December 2017 Date 29 December...