A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, formed by wave erosion. Stacks are formed over time by wind an
The Twelve Apostles stacks in Victoria, Australia
Downpatrick Head Dún Briste, County Mayo, Ireland. Clear horizontal bedding is visible, exposing 350 million years of geological history.
Stack Rock, County Antrim by Clarkson Stanfield, 1861
A rauk is a column-like landform in Sweden, often equivalent to a stack. Rauks often occur in groups called raukfält 'rauk fields'. The limestone rauks of Gotland in the Baltic Sea are among the best
Stack (geology)
…List of sea stacks Rauk Media related to Geological stacks (category) at Wikimedia Commons…
Rauks (rauks) at Fårö Island, east of mainland Sweden
Trænstaven [no] mountain in Træna Municipality is a rauk amidst the strandflat landscape of Norway's coast.