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"Come and visit one of the most beautiful gold mines in the world.
In northwestern Spain is a strange rock formation carved golden sandstone. A carpet of green chestnut gives the impression that jagged cliffs and lofty towers were carved by the forces of nature. They saw only occasionally disclose any ancient secret tunnel openings. Here, in a place called Las Médulas today, was once the largest gold mine in the Roman Empire. Emperor Augustus wanted a stable economy and the dinar and silver coins which aureus were able to lubricate the wheels of trade based on the novel. 
To beat enough coins he had, of course, need gold and silver. When, finally, the legions had subdued the northwestern part of Spain, not long before the beginning of our era, they discovered new gold deposits. But the precious metal was buried in alluvial deposits trails that do not easily surrendered. They had to go two and a half centuries of toil and sweat to reveal hidden treasure. Their plan to extract gold was gradually wash mountain. To achieve the objective, the Romans built 50 channels and several large pools dug up in the mountains and hundreds of miles of tunnels. Once the network of tunnels was built in a part of the mountain, engineers flooded tunnels with water at a high pressure. Anger deploy tons of ground water. Rock and sand were washed gold to the mountain, where gold could be separated from the sand by washing and sieving. Then the same process is repeated after the construction of other tunnels.
Hundreds of meters of tunnels I'm at dispozite to visit.
If you would like an evening in the area and to live a beautiful experience you can't do it here:
