Rock Bridge Memorial State Park is a geological preserve and public recreation area encompassing 2,273 acres, five miles south of Columbia in Boone County, Missouri off of Missouri Route 163. The stat
Rock Bridge in 2006
Sinkhole
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A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeh
Rock Bridge Memorial State Park
…off of Missouri Route 163. The state park is home to 12 caves and is noted for its excellent examples of karst landforms including the rock bridge, sinkholes, and an underground stream at the cave known as Devil's Icebox. The rock bridge was created by the collapse of a section of a cave which resulted in a…
The Red Lake sinkhole in Croatia
Sinkholes near the Dead Sea, formed when underground salt is dissolved by freshwater intrusion, due to continuing sea-level drop.
Collapse sinkhole in Chinchón, Spain.
A 32-foot-deep (9.8-meter) collapse formed by rainwater leaking through pavement and carrying soil into a ruptured sewer pipe in the parking lot at Georgia Tech in Atlanta, Georgia in 2005