The Stone Forest of Shilin is located in the Lunan Yu Autonomous County, southeast of Kunming Qujing Prefecture in Yunnan Province, China. This amazing “forest” is said to exist for over 270 million years, from the Paleozoic era. It is a karst landform with unique limestones (sedimentary rocks composed largely from minerals), which were washed by the sea and created groups of gray-black stone peaks and stone pillars. This unique forest has a few unusual characteristics:  it consists of thousand of narrow, pointing to the sky, weirdly-shaped rocks towering up to a height of between 5 and 30 m (15 and 100ft) giving the impression of a very dense forest with old trees.