This series of images was taken in 2009 in Namibia and in Colorado. The Namibian landscape has seen little or no water for many years. The lake bed, trees and sand are bone dry and windswept, leaving a scene of dessication where once there had been abundant water. Wind is the primary force of erosion, aided only by sand. In Colorado, at the Sand Dunes National Monument, the landscape is formed by wind as well, but then water has worked over and around the dunes as rain is nearly a daily occurrence and a river runs intermittently along the bottom edge of the dunes. Where the Namibian lake bed is deeply fissured, the river bed in Colorado is sculpted anew every day as water ebbs and flows around the dunes.