Limestone Karst

Limestone Karst "pavement" formations found near Cirque Peak, September 7th, 2011. According to Wikipedia: "A limestone pavement is a natural karst landform consisting of a flat, incised surface of exposed limestone that resembles an artificial pavement. Conditions for limestone pavements are created when an advancing glacier scrapes away overburden and exposes horizontally-bedded limestone, with subsequent glacial retreat leaving behind a flat, bare surface. Limestone is slightly soluble in water and especially in acid rain, so corrosive drainage along joints and cracks in the limestone can produce slabs called "clints" isolated by deep fissures called 'grikes' or 'grykes', terms derived from the North of England dialect."