natural-elevation As a command 28 categories below natural-elevation Narrow by place 21 landform 19 natural-object 19 natural-ridge 17 earth-bank 10 sandbank 8 shoal 7 reef 5 coral-reef 4 highland 4 hill 4 mountain 2 plateau 2 cliff 1 dune 1 island 1 land 1 ledge 1 seamount 1 slope 1 coral-reef 4dune 1earth-bank 10highland 4ledge 1natural-ridge 17plateau 2reef 5sandbank 8seamount 1shoal 7atollbarrier-reefbermbluffbuttecaydownlandeskerfoothillgreat-barrier-reefguyotmesapromontoryripple-marksandbarseif-duneterrace