Озеро в карьере

Место: Мармора, Онтарио K0K, Канада
Красота-то какая, лепота!

Marmora, Ontario - Marmoraton Iron Mine by Mac Armstrong
Marmoraton Iron Mine, a photo by Mac Armstrong on Flickr.
Via Flickr:
Marmora's Big Hole. Each year the cavity left by the Marmoraton Iron Mine fills with a little more water. The pit contained magnetic iron ore and was mined until it was exhausted in the 1970's, leaving a massive circular pit a third of a kilometre (1100 feet approx.) across and 200 metres (656 feet) deep.
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