The Wave

A spectacular Navajo sandstone formation, known as The Wave, at Coyote Buttes in the Arizona desert, south west United States. This place is difficult to find, there are no signposts and it is accessible only by foot. The picture is from Eyewitness, a series of often remarkable photographs on the Guardian website. I was reminded of it by Liz Somerville’s image at the end of yesterday’s post.

Frames of reference