Active sand dune

automatic sand plant

batch sand plant

coastal sand dune

Coastal sand-dune

continuous sand plant

Dune sand

Dune-sand

eolian sand dune

erosional sand dune

Fixation of sand dune

Fixed sand dune

fore-part of sand dune region

Hobq sand dune

Holocene sand dune activity

mobile sand dune

Mobility of Sand Dune

parabolic sand dune

plant sand block