Oxides

You can see a characteristic landscape of the Grand Canyon, with the Colorado River rising, viewed through binoculars. The image stands out because it is unusual to see a watercourse in such an arid place. It may remind some of manganese oxide precipitate in a vial, though that is just imagination.

The repetitive geometry and visual ambiguity evoke the Penrose Stairs and the lithograph Ascending and Descending by M. C. Escher.