Springfield Coal Member Mined Out 2010

COAL_MINE_MINED_OUT_SPRINGFIELD_IN_2010 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of Springfield Coal Member mined-out areas in the coal region of west-central and southwestern Indiana. COAL_MINE_MINED_OUT_SPRINGFIELD_IN_2010 includes mine locations from documented surface and underground mines that operated in Indiana since the late 1800s. COAL_MINE_MINED_OUT_SPRINGFIELD_IN_2010 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_SPRINGFIELD_IN_2010 是一款基于多边形的ESRI ArcGIS 形状文件（shapefile，矢量地理数据格式），用于展示美国印第安纳州中西部与西南部煤炭产区内斯普林菲尔德煤段（Springfield Coal Member）的采空区位置与范围。该数据集收录了自19世纪末以来在印第安纳州运营的、经文献记录的露天煤矿与井下煤矿的点位信息。该数据集附带属性字段，可通过煤矿编号、所属县名以及煤矿类型（露天或井下）对采空区多边形进行区分。