Surface Coal Mines 2016

COAL_MINE_SURFACE_DNR_IN.SHP provides the locations of all documented surface coal mines that have operated in the coal region of Indiana since the mid-1880s, up to December 31, 2016. COAL_MINE_SURFACE_DNR_IN.SHP is attributed with mine number (IDNR), map number (IDNR), start dates, and end dates. The following is excerpted from the metadata provided by IDNR, Division of Reclamation, for the source point feature class named "SURFACE_AFFECTED": "Coal_Mine_Surface_DNR_IN is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of surface coal mines in the coal region of west-central and southwestern Indiana. Coal_Mine_Surface_DNR_IN includes mine locations from documented surface mines that operated in Indiana since the late 1800s. Coal_Mine_Surface_DNR_IN is attributed to allow the mine polygons to be differentiated based on mine number, source information, and dates of mining.COAL_MINE_SURFACE_DNR_IN.SHP 记录了1880年代中期至2016年12月31日期间，印第安纳州煤炭产区所有已备案运营的露天煤矿的点位信息。该数据集附带的属性字段包括矿山编号（IDNR）、图幅编号（IDNR）、开采起始日期与终止日期。 以下内容节选自印第安纳州自然资源部（Indiana Department of Natural Resources，IDNR）复垦局为名为"SURFACE_AFFECTED"的源点要素类提供的元数据： "Coal_Mine_Surface_DNR_IN 是基于多边形的ESRI ArcGIS形状文件（ESRI ArcGIS Shapefile），用于展示印第安纳州中西部与西南部煤炭产区内露天煤矿的位置与分布范围。该数据集涵盖了19世纪晚期以来印第安纳州所有已备案运营的露天煤矿的点位信息。该数据集附带的属性字段可依据矿山编号、来源信息与开采日期对煤矿多边形要素进行区分。"