Butte Montana and open pit mines (pan) https://geologypics.com/wp-content/uploads/2017/07/geology-pics.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/07/geology-pics.png Marli Miller2017-04-30 20:11:172017-10-03 20:10:32Butte Montana and open pit mines (pan)
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