Spiral Land Art

This is the bizarre Spiral Jetty, a huge piece of land art on the northeastern shore of the Great Salt Lake in Utah. Built of mud, salt crystals, basalt rocks and earth, it forms a 1500 foot long (~450 metre), 15-foot wide counterclockwise coil, which extends from the lake shore. It was actually entirely submerged by rising lake waters for many years, but due to lowering water levels, has since re-emerged.

Spiral Jetty was built all the way back in 1970 by the late American sculptor Robert Smithson, who also created some other pieces of land art which are still visible on Google Earth, including the 1971 piece Spiral Hill, Broken Circle in Emmen, Holland.

See other spirals on GSS, and read more about Spiral Jetty at Wikipedia.

Thanks to Dan Blue and Mike Shubeck.