Delicate Arch in Arches National Park, Utah, USA.
Jon Sullivan
<a rel="nofollow" class="external free" href="http://pdphoto.org/PictureDetail.php?mat=pdef&amp;pg=5482">http://pdphoto.org/PictureDetail.php?mat=pdef&amp;pg=5482</a> and prepared for Wikipedia by Adrian Pingstone in June 2004.