Saltpan Sinkhole

A sinkhole, six feet across at its mouth and of an unknown depth, opened in the salt pan on the floor of Death Valley following the record rains of 2005. It was gone by 2007.

Edition of 1516(w)x20(h)$1,000
Edition of 1024(w)x30(h)$2,000
Edition of 832(w)x40(h)$3,500
Edition of 448(w)x60(h)$4,700