Wikimedi'Òc
Modes d'emploi
Glacial copper boulder (Mesoproterozoic, 1.05-1.06 Ga; near Houghton, Keweenaw Peninsula, Michigan, USA) (17269890716).jpg - Natuur12
Glacial Boulder 2016-06-8 166.jpg - Chris Light
Glacial Boulder 2016-06-8 165.jpg - Chris Light
Glacial Boulder 2016-06-8 167.jpg - Chris Light
Glacial Boulder 2016-06-8 168.jpg - Chris Light