Underground gold mine shaft tunnel drift with rotary car wagon tipper
Palabras clave
gold,
mine,
mining,
shaft,
underground,
ore,
dark,
industry,
technology,
rail,
drift,
tunnel,
passage,
rock,
stone,
abandoned,
cave,
cavern,
deposit,
gallery,
geology,
heavy,
iron,
mineral,
quarry,
timber,
timbering,
wagon,
wood,
miner,
industrial,
dirt,
miner,
copper
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