DMO Mined Out Area Coal Underground (MOA)

Coal mining has occurred in Pennsylvania for over a century. This dataset tries to identify the areas of the various coal seams in Pennsylvania that have been extracted by various underground mining techniques. This information can be used for many environmental related issues, including mine land reclamation and determination of needs for Mine Subsidence Insurance. The information in this dataset was gathered from digitizing the area of extracted coal identified on historic and modern underground mine maps. The maps to these coal mines are stored at many various public and private locations (if they still exist at all) throughout the commonwealth, they have been scanned to create a digital archive, and georeferenced to their approximate location for use in a geographic information system (GIS). The dataset is continuously updated as new maps are processed and is not considered “completed”, i.e. just because an area in Pennsylvania is not identified in this dataset as mined, does not mean the area was not mined.宾夕法尼亚州的煤矿开采历史已逾百年。本数据集旨在识别该州境内经各类地下开采技术采掘的各煤层分布区域。该数据集可应用于诸多环境相关议题，包括矿区土地复垦以及煤矿塌陷保险（Mine Subsidence Insurance）需求的核定工作。本数据集的信息源自对历史与现代地下矿图上标注的已采掘煤炭区域进行数字化处理。这些煤矿地图分散保存于该州境内诸多公共及私人机构（若仍存世的前提下），工作人员已将其扫描以建立数字档案，并进行地理配准至近似坐标，以供地理信息系统（GIS）使用。本数据集会随着新地图的处理工作持续更新，尚未被认定为已完成。换言之，即便宾夕法尼亚州的某一区域未在本数据集中被标记为已开采，也不代表该区域未曾进行过煤矿开采。