Colchester Coal Member Mined Out 2014

COAL_MINE_MINED_OUT_COLCHESTER_IN_2014 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of the mined-out areas in the Colchester Coal Member in the coal region of west-central and southwestern Indiana. COAL_MINE_MINED_OUT_COLCHESTER_IN_2014 includes mine locations from documented surface and underground mines that operated in Indiana since the late 1800s. COAL_MINE_MINED_OUT_COLCHESTER_IN_2014 is attributed to allow the mine polygons to be differentiated based on mine number, county name, and mine type (surface or underground).COAL_MINE_MINED_OUT_COLCHESTER_IN_2014是一款基于多边形的ESRI ArcGIS形状文件（shapefile），用于呈现印第安纳州中西部与西南部煤炭产区内科尔切斯特煤组（Colchester Coal Member）的采空区位置与分布范围。该数据集涵盖了19世纪末以来在印第安纳州运营的全部有记录的露天及地下煤矿的点位信息，附带属性字段，可通过矿井编号、所属县名以及矿井类型（露天或地下）对各矿井多边形进行区分。