Mine workings

Tasks of the State Geological Survey(SGS), carried out as authorized by the Ministry of the Environment (MoE):

1. The management of the Underground mines database is based on the necessity of creating an inventory of individual underground mines in the territory of the Czech Republic. An underground mine is any mine working which opens to the surface and which is driven for the purpose of extracting a reserved deposit or its integral part, as defined in Act No. 61/1988, on mining activity, explosives and the state mining authority. The database structure is based on the underground mine registration form, provided in Appendix No. 2 of Czech Mining Authority Decree No. 52/1997, Also included are many monitored items necessary for processing reported “impacts of mine workings“ (Act No. 44/1988, (Mining Act) and MoE Decree No. 363/1992). The database also contains a number of additional information on each site as well as digital documentation in *.jpg format – e.g. map sections, photographs, diagrams. The recorded information mainly includes the precise location of mine entrances, the topographic location, ownership details, technical data, the present condition of the workings, their hazard level and safety measures. In addition to the above-mentioned items, the databes is primarily used in land-use planning and monitoring the safety of mine workings. Currently, the sites of underground mines are depicted by standard symbols on maps of abandoned mine lands. The information is updated continuously as sites are identified. The database currently contains 26 156 sites and 20 530 graphic attachments.
2. Management of the Mine land Reclamation and remediation database (according to Act No. 272/1996). The data on mine land impacted by mining are part of the Hor(MPO)1-01 statistical report on mining technology and operations data. The data refer to individual mining leases or mineral deposits. Since 1999, they have been monitored and updated for each calendar year. The data are provided only in summaries, and complete data are only provided to organizations approved by the Ministry of Industry and Trade (MPO).
3. Management of the Abandoned mine lands database according to Act No. 44/1988, on the protection and use of mineral resources (Mining Act). The database currently contains information on 5 578 sites. It serves, among other things, as a source for compiling maps of abandoned mine lands that are used for land-use planning.
4. Managment of the Impacts of mine workings Database by virtue of Act No. 44/1988, on the protection and use of mineral resources (Mining Act), and MoE Decree No. 363/1992, on the survey and inventory of impacts of mine workings. Impacts of mine workings include subsurface mine workings or quarries that are abandoned and whose original owner or legal successor does not exist or is unknown. The database currently contains 2 593 reports that include 2 272 impacts of mine workings. It also contains 9 multiple-event reports that include information on 2 862 sites.
5. Management of the Mining maps database. The database contains maps and plans related to mining in the Czech Republic. It includes original maps and various copies, prints and manuscripts. Most of the maps were drawn in the 20th century (around 5 200), however there are also maps from the 19th century (over 1 000), 18th century (around 350) and the 16th – 17th centuries (around 20). The maps are digitized and include a spatial reference. All collections are publicly accessible via web applications. The database currently contains over 12 000 items.