Gypsum in red bed, Spearfish Fm.

Go to slide: 1: Deserts & Arid Lands 2: Utah graveyard in desert 3: Dry wash 4: Desert pavement 5: Dry wash 6: Sand dune 7: Mudcracks 8: Migrating dunes 9: Atacama Desert, Chile 10: Great Salt Lake 11: Salt flats, Salar de Uyuni, Bolivia 12: Floodes salt flats, Salar de Uyuni, Bolivia 13: Gypsum in red bed, Spearfish Fm.

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