Updating of the National Inventory of Sludge Deposits in the treatment process of extractive industries that was carried out in 2002. The reference systems offered by this service are: CRS: 84, EPSG: 4326, EPSG: 4258, EPSG: 4230, EPSG: 23028, EPSG: 23029, EPSG: 23030, EPSG: 23031, EPSG: 25828, EPSG: 25829, EPSG: 25830, EPSG: 25831..

Database of sterile deposits from mining washers. It also contains alphanumeric information of the different registers, documentary information (photographs, sketches and situation maps). This information is of national scope and has been generated thanks to the agreement "Update of the National Inventory of Mining Sterile Bodies" signed by the IGME and the General Directorate of Mines (MINER) in 1999. Information contained in the "Inventory" has also been used. in the "National Inventory of Mine Waste Ponds and Mining Tailings" carried out by the IGME between 1983 and 1989. It is a georeferenced documentary database managed with SQL Server, available online at http://info.igme.es/balsas