Before revision: Examples upright=1.5|Kolk from the 1717 Christmas flood in Horumersiel with information board Kolks were first identified by the Dutch, who observed kolks hoisting several-ton blocks of riprap from dikes and transporting them away, suspended above the bottom.
After revision: (:de: Horumersiel)Examples upright=1.5|Kolk from the 1717 Christmas flood in Horumersiel with information board Kolks were first identified by the Dutch, who observed kolks hoisting several-ton blocks of riprap from dikes and transporting them away, suspended above the bottom.