

Fig. 1A stone log and the banded Chinle at dusk
Landform
Banded Chinle badlands in lavender, blue, and ash, scattered with the jewel-colored logs of a Triassic forest.
Field note
The Chinle Formation is old mud turned to candy. Petrified logs lie where a river dropped them two hundred million years ago. Evening is the hour the bands go violet.














