terrain naturel
[DE] Untergrund; gewachsene Boden
[EN] natural ground; natural soil
[FR] terrain naturel
terrain naturel
[DE] gewachsener Boden
[EN] undisturbed ground
[FR] terrain naturel
sol naturel,terrain naturel
[DE] natuerliches Gelände
[EN] original ground
[FR] sol naturel; terrain naturel