CAN-3701 Picture Sandstone Detail Northern Arizona / Utah Natural sandstone formed 180 years to 220 million years ago by wind and water as part of the geological formation "Shinarump" - Colors and designs induced by iron oxides in mineral springs John Cancalosi Please note that pritns are for personal display purposes only and may not be reproduced in any way. contact details: web@ardea.com tel: + 44 (0) 20 8672 2067 . Stunning Photo Gifts From Ardea - wildlife pets environment