The creation of sand dunes is the endless cycle of wind blowing sand grains from the valley floor, and the erosion of the bordering creeks carrying the sand back to the valley. This cycle is dependent on a high water table which ensures a constant flow of water in the creeks. A few inches below the surface of the dunes themselves the sand is wet; this moisture is mostly from precipitation. The Sangre de Christo Mountains lies to the north and east in the image.
The Maps-Un-Natural™ series could also be called Psychedelic Maps. These are an effort to create a visually stunning and interesting image, usually with a limited color palette. The coloration varies only with elevation and often brings out notable landscape features.
These posters are available on high-quality media (various papers and canvas) using archival inks, and print clearly up to about 34” x 23” (“Large” size). Fulfilled by Zazzle.com. There is a framing option on their website.