Where moving water is continued over a cliff

An area of land that is close to a river or stream that has been cutoff from the moving water

A open and hollow place underground

Crystals that have grown overtime making them larger than average crystals

Arches in the ocean that have eroded out of a cliff face

Sediments and materials being move along the shore by waves

The scraping and wearing away of rock

A ridge or cliff like shape of sand created by wind

A heavily deep bowl shaped indent in a mountian 

Sediments and materials that are left over by a glacier