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Nearly 600 abandoned mines are hidden beneath N.J. towns. See the map.
(See an interactive map of abandoned mine locations below ... The mayor of Mine Hill, a Morris County borough whose name stems from two centuries of iron ore mining in the area, said he hopes the I-80 ...
NJ.com20d
Nearly 600 abandoned mines are hidden beneath N.J. towns. See the map.
(See an interactive map of abandoned mine locations below ... a Morris County borough whose name stems from two centuries of iron ore mining in the area, said he hopes the I-80 sinkhole ...