Border wall in the Imperial Sand Dunes, 20 miles west of Yuma, A

The border wall in the Imperial Sand Dunes, 20 miles west of Yuma, AZ, on February 25, 2019. Due to the constantly shifting contour of the sand dunes, the border wall “floats” on top of the sand and can be lifted and resettled as necessary. 

U.S. Customs and Border Protection photo by Jerry Glaser