2014 DEM Malakoff Diggins State Historic Park, California
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One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park...
占地面积达1.6平方千米的大型水力采矿场之一,坐落于美国加利福尼亚州内华达山脉(Sierra Nevada)的洪堡溪(Humbug Creek)流域与马利科夫迪金斯州立历史公园(Malakoff Diggins State Historic Park)境内……



