Aerial view of dunefield, <a href="//commons.wikimedia.org/wiki/White_Sands_National_Park" title="White Sands National Park">White Sands National Park</a>, <a href="//commons.wikimedia.org/wiki/New_Mexico" title="New Mexico">New Mexico</a>, United States
uncredited NPS employee
2016-01-01
<a rel="nofollow" class="external text" href="https://www.nps.gov/whsa/learn/management/upload/WHSA_Foundation_Document_2016_01_01_16_-4-6MB_PDF.pdf">NPS Foundation Document</a> (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20170302100920/https://www.nps.gov/whsa/learn/management/upload/WHSA_Foundation_Document_2016_01_01_16_-4-6MB_PDF.pdf">archive</a>), page 12 (no name is credited in the "Photo and Art Credits", page 42)