2007, “DUNE FIELDS/Mid-Latitudes”, in Scott A. Elias, editor, Encyclopedia of Quaternary Science[1], volume 1, Elsevier B.V., →ISBN, →LCCN, →OCLC, page 610, column 2:
The Kumtag Desert also has complex dune chains and star-shaped pyramidal dunes. In this sand sea, heights of the dunes vary between 100 and 200 m (Fig. 6).
2007 July 10, “China pledges safe fare for Games”, in Reuters[2], archived from the original on 15 May 2020, Healthcare & Pharma[3]:
People stand in shape as Olympic Rings to celebrate the upcoming 2008 Beijing Olympic Games at Kumtag desert region in Shanshan County, northwest China's Xinjiang Uygur Autonomous Region June 23, 2007.
“DO YOU BELIEVE the voices are real?” My Chinese guide and I were standing in the Yardang National Geopark, on the border between Gansu Province and the Xinjiang Uighur Autonomous Region in China’s extreme northwest. The nearest town was Dunhuang, 110 miles to the southeast. Enormous yardangs — curving sandstone and mudstone strata carved by winds — towered over us. Others floated on the far horizon. “You mean the singing sands?” I asked. On my map, an asterisk marked this strange feature of the Kumtag Desert, three miles from Dunhuang. If you throw yourself down the dunes in that place, the air resonates — sometimes like the lowest note on a cello; sometimes like a crack of thunder.
