letter t and the kings crown. rock relief and engraving in chalk sandstone

autumn beautiful bohemia bohemian chalk crown czech czechia destination detail engraved europe ferriferous formation goethite hematite hikers history hydrohematite icon iron kings labyrinth landscape letter limonite metal mining mountain mountains natural nature north oxides park path republic rock rocks rocky sample sand sandstone sedimentary specimen steny stone summer switzerland tisa tiske tourism tourist travel trip walls