Dune Crest

Dune

A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, flat regions covered with wind-swept sand or dunes, with little or no vegetation, are called ergs or sand seas. Dunes occur in different shapes and sizes, but most kinds of dunes are longer on the stoss (upflow) side, where the sand is pushed up the dune, and have a shorter slip face in the lee side. The valley or trough between dunes is called a dune slack.

dune

Noun

1. A ridge or hill of sand piled up by currents of wind or water.

crest

Noun

1. The summit of a hill or mountain ridge.
2. A tuft, or other natural ornament, growing on an animal's head, for example the comb of a cockerel, the swelling on the head of a snake, the lengthened feathers of the crown or nape of bird, etc.

Verb

1. Particularly with reference to waves, to reach a peak.
2. To reach the crest of (e.g. a hill or mountain).