hrad Trosky
Czechia
Before it was a castle, Trosky was a volcano. The hill is made of olivine nephelinite, the remnant of a Tertiary vent that forced its way up through the surrounding sandstones and marlstones. The two crags you see from miles around are the exposed fillings of old volcanic throats, shaped by frost and by human hands. Look closely and you can pick out frost-cut faces and cracks where the rock splits into columns, and other patches where it flakes away in plates. The taller crag, Panna, rises 57 metres; the lower one, Baba, 47. Panna's summit, at 511 metres, is the highest point of the Vyskeř Highlands. Even the name fits the geology: troska means a broken fragment, a nod to these crumbling rocks.
- Written with AI from the Wikipedia article Trosky (hrad) (cs.wikipedia.org); facts only from there
- Show on OpenStreetMap
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