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Tröllabörn in Lækjarbotnar are protected lava and pseudocrater formations. The area was protected in 1983.
Other pseudocrater landscapes nearby include Rauðhólar Protected Recreation Area.
The formations must not be damaged or disturbed.
Tröllabörn also has educational value because the formations demonstrate how gases and molten lava can create unusual pseudocrater features. It is an accessible example of volcanic processes close to the Capital Region.
The purpose of protection is to conserve the distinctive hornito and lava formations at Tröllabörn.
Tröllabörn in Lækjarbotnar consists of distinctive hornito formations created as volcanic gases escaped through hot lava.
Disturbing or damaging the geological formations is prohibited.
Official website
Tröllabörn Natural Monument
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