Gallery

Sandstone natural arch

Sea arch

Dissected badlands

River gravel bar

Erosional bench

Rock blade

Fresh fractured block

Joint-bounded block

Angular boulder

River-worn boulder

Rounded boulder

Subrounded boulder

Tabular boulder

Butte

Canyon wall

Karst cave mouth

Volcanic cave mouth

Bedded cliff

Columnar cliff

Foliated cliff

Jointed block cliff

Massive cliff

Cliff corner module

Straight cliff module

Cliff termination module

Discoid cobble

Rounded cobble

Basalt colonnade

Basalt entablature

Radial or curved columns

Tiered colonnade-entablature flow

Spheroidal corestone

Rockfall deposit

Exfoliation dome

Dyke wall

Glacial erratic