Researchers have discovered what may be the world’s oldest 3D map, located within a quartzitic sandstone megaclast in the ...
One of the most interesting is the Rainbow Bridge, which is up there with the longest natural bridges on Earth. The post ...
Criterion (vii): The huge number of sandstone columns and peaks—more than 3,000—are spectacular. These, coupled with other land forms (natural bridges, ravines, waterfalls, streams, pools and caves) ...