Description: A subdivision(s) of a Planning Unit (PU), containing one or more Problem Type (s) with immediately adjacent impacted land and water, problem areas are pre SMACRA areas.
Description: The general term "cropline", refers to the line along the ground surface where the mined mineral seam is exposed in the existing grade. It can also be utilized to define the structural contour of the top of the mined mineral seam which is covered by a uniform depth of overburden.
Description: Title IV of the Surface Mining Control and Reclamation Act of 1977 (SMCRA, Public Law 95-87) established the national Abandoned Mine Land (AML) Reclamation Program under the Office of Surface Mining Reclamation and Enforcement (OSMRE), U.S. Department of the Interior. The program was developed to reclaim land and water resources adversely affected by past coal mining and left abandoned or inadequately restored. SMCRA levied fees on active coal mining to pay the reclamation costs. OSM, State and Tribal authorities administers the federal AML program to reclaim those areas disturbed by coal mining operations and for which there is no continuing reclamation responsibility by a mine operator. During the years immediately following enactment of the SMCRA, OSM, states, and Native American tribes conducted surveys of eligible lands and waters and created individual inventories of problems to be addressed under Title IV. The initial inventory was completed in 1981. In 1990 SMCRA was amended and OSM was required to maintain a national inventory of high priority abandoned coal sites and provide standardized procedures for states and tribes to use in updating the data. The need for an automated nationwide inventory lead to the creation of Abandoned Mine Land Inventory System, or AMLIS, a compilation of the individual state, tribe, Federal Reclamation Program (FRP), and Rural Abandoned Mine Program (RAMP) inventories. The AMLIS documents counts for various problem types and the costs to remedy those problems. The system captures estimated unfunded costs, estimated construction costs when funding is made available for remediation projects, and the actual costs for completed constructed projects. It is used in support of AML work plan development, to record the work completed under each regulatory authority (RA) AML program, and report the extent and cost of AML problems remaining. Delineations of AMLIS Problem Areas (PA) are unique to the state/regulatory authority under SMCRA and represent areas known to contain AML problem sites. PA boundaries were originally sketched on 7 ½ -minute quadrangle topographic and mylar maps circa 1980 which were subsequently scanned and georeference when creating the PA GIS polygon data. This PA data was initially developed to create an accurate PA layer for interoffice use and public distribution. OSM anticipates future modernization of the national AMLIS will allow this data to be incorporated to reflect accurate PA designations. ESRI ArcGIS 10.1 software was utilized to create the shapefile layer. The data frame was set to geographic coordinate system GCS_North_American_1983 and projected coordinate system NAD_1983. The AML GIS layer as a basis for future data and to support AML reclamation planning efforts and ongoing maintenance of the national AMLIS database.
Copyright Text: All GIS dataset have been created through partnerships from OSM's Division of Reclamation Support with OSM, State and Tribe Abandoned Mine Land Programs. - For Example, the Maryland PAD dataset has been created by Maryland Department of the Environment, Mining Program.
Description: Boundaries of available sub-surface mines worked prior to the enactment of SMACRA (1977). Not all inclusive only of maps available to the Surface Mining Section.
Description: Boundary Lines of the coal mines, surface type that KDHE office has permitted over the years. All Permitted Mines are post SMCRA (Surface mining reclamation act of 1977).