Monument Valley is a stunning landscape of geological wonders. Red sandstone outcrops known as buttes, formed by gradual erosion, are a feature of this arid region on the state border of Arizona and Utah.
Lone horse rider at John Fords Point, Merrick Butte, Monument Valley Navajo Tribal Park, Arizona (Neale Clark/Robert Harding)
Buttes lit up by the sun against a stormy sky, Utah and Arizona, US (Tony Gervis/Robert Harding)
Route 163 to Monument Valley, Utah, USA (Gavin Hellier/Robert Harding)
Sun’s Eye, Monument Valley Navajo Tribal Park, Utah (Peter Barritt/Robert Harding)
The Mittens, Monument Valley Navajo Tribal Park, Arizona (Neale Clarke/Robert Harding)
View from North Window, Monument Valley Tribal Park, Arizona (Lee Frost/Robert Harding)
Tracing stars moving round the North Star, Monument Valley, Utah and Arizona (Tony Gervis/Robert Harding)
Horse riders in Monument Valley, Utah (Neil Emmerson/Robert Harding)
See more photos of Monument Valley here
blog.robertharding.com 