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Borehole surveys
This map application gives access to key information about drilling and objects registered in the descriptive database of geological objects. The boreholes inventory includes hydrogeological and geophysical data.
- Contact person: Bc. Václav Zikán
- Related web page
- Metadata record about the application
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CGS expert opinions
Web application providing access to information on experts opinions of Czech Geological Survey (CGS). This expert opinions were drawn up by CGS district geologists and associated specialists according to the equirements of government authorities of the Czech Republic of all levels.
- Contact person: RNDr. Jan Čurda
- Related web page
- Metadata record about the application
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Complex radon information
CGS map server application allows statistical data of radon hazard for Czech's administrative units. Data was processed by CGS and State Office for Nuclear Safety under the Czech Republic Radon Program. Application operates with the Geological map 1 : 50,000 and 1 : 500,000. It's possible to generate komplex radon information in PDF format for municipality centroids.
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Geohazards (Lite)
Map application displays objects belonging to the geohazard category. There are abandoned mine lands, underground mines, mining waste repository, ground instabilities objects and radon map. A short description is supplemented by links to more information. The layer of underground mines contains links to documentary photos.
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Geological map 1 : 50,000 (Lite)
Map application presents geological map of the Czech Republic at a scale of 1 : 50,000. There are also key information about boreholes objects registered in the descriptive database of Geologically documented objects.
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Geology for all
Map application presents hundreds of geosites (geologically interesting sites) in the Czech Republic to a wide public. It includes natural geological outcrops, remains of human activities, mainly of mining origin, caves and karst phenomenon, outdoor geological exhibits, museums with geological expositions, national geoparks and excursion guides (for download in PDF). Every geosite is briefly described and accompanied by a photo, note of its protection and other references. For more special purposes the layer with thousands of other important geological localities and links to its detailed web pages is presented. It is possible to turn on also geological map (1 : 50,000) of the Czech Republic.
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Geophysical measurements
Map application displays layers, thematically divided according to the geophysical methods used for the data acquisition. The map application contains the geophysical measurements paid by the Czech state, carried out mainly by former company Geofyzika Brno. Application displays the following map layers: seismic (2D reflection seismic and well shoots), vertical electric sounding (polygons, lines, points), gravimetry (map ot the Bauguers anomalies) and localization of the geophysical surveys on the territory of the Czech Republic (both regional and local).
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Geoscience maps 1 : 25,000
The map server application displays the results of geological mapping of the Czech Republic at a scale of 1: 25,000 (GEOČR25), which has been going on since 1999 to the present. These include vector geological maps depicting both surface geology as well as bedrock geology (maps with / without quaternary cover). Geological mapping at a scale of 1: 25,000 is carried out regionally, in defined areas of interest (a unified regional legend is available for each area of interest). As of March 2022, data is available from the regions of the Brno agglomeration, Český ráj (Bohemian Paradise) – Krkonoše (The Giant Mountains) - Liberec, Jeseníky Mountains, Křivoklát - Brdy, Lugicum, Moldanubicum, Moravia, Polabí (the Elbe region) and Žďárské vrchy (Highlands of Žďár).There is an overview map layer of the mapped areas in the application. The raster geological maps 1: 25,000 (in the S-JTSK coordinate system) with legends and the full map citations are also accessible from this application. These include both archive maps (produced before 1999) and maps generated from the above-mentioned vector map data. Archive maps (rasters) of geological maps at a scale of 1: 25,000 in the S-42 coordinate system (in the Gauss-Krüger projection) are also accessible in the application, inclusive of displaying their legends.
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Geoscience maps 1 : 50,000
Map server application presents geological map of the Czech Republic at a scale of 1 : 50.000, into which the geological legend of the Czech Republic is incorporated. This application enables access to other datasources such as borehole surveys, geochemical measurements, etc.
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Geoscience maps 1 : 500,000
Map server application presents the results of the geological maps of the Czech Republic at a scale of 1 : 500,000 (GEOCR500). Maps describe bedrock geology and also (in Czech version of the application) additional derived maps: radon risk, engineering–geological zones and quaternary geology.
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Geothermal energy potential
The map application shows the Czech Republic‘s geothermal potential and its limitations. Map layers indicating the temperature distribution (°C) at various depths ranging from 400 m to 5000 m, a map of heat flux distribution (mW.m-2) at the surface, and a map of the thermal conductivity of rocks (W. m-1. K-1) illustrate the geothermal potential. The application also includes thematic layers depicting limitations and conflicts of interest, which are constraints on the use of geothermal energy due to natural hazards (e.g. floodplains, areas with unstable bedrock and prone to landslides), technical constraints on the construction of geothermal installations (existing infrastructure, mining, etc.), and legislative restrictions (protection of nature and water, etc.).
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Groundwater – zones, base flow and vulnerability
This map server application displays the hydrogeological zones of the Czech Republic territory as defined in 2005 at a scale of 1 : 50,000. It contains 3 layers: upper layer, basal cretaceous collector, base layer. Raster hydrogeological maps at a scale of 1: 50,000 (HG50) and 1: 200,000 are also available in the application.
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History of geological mapping
This map server application presents two sets of old geological maps from the area of Bohemia and Moravia – manuscript geological maps at a scale of 1 : 28,800 and printed geological maps at a scale of 1 : 144,000 (so called Haidinger maps). Attributes available for manuscript maps: title of the map sheet in Czech and German, information about the author and date of creation (if it is available), link to a file with geological legend (if it is available) and links to map archives of CGS and GBA. Attributes for printed maps: title of the map sheet, name of the author and link to the CGS map archive.The manuscript maps are published on CGS map server with the permission of the Archive of the Geological Survey of Austria (GBA).
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Hydrogeological map 1 : 50,000 – regions
The map application displays hydrogeological maps that were processed during the solution of various types of projects in the CGS. The extent of hydrogeological units is derived from the geological map on a scale of 1: 50,000 and the HydroGEOČR50 layer, which was created within the R&D project of the Ministry of the Environment of the Czech Republic SP/2e1/153/07. Within the individual regions, the values of the transmissivity of the hydrogeological units, the type of the hydrogeological environment and the sequence of collectors and aquicludes in the Czech Cretaceous basin are shown in the hydrogeological maps. Data on the chemical composition of groundwater and hydraulic properties of rocks are presented for selected archival wells. Descriptions, results of field measurements and photo documentation are available for individual hydrogeological objects documented in the field (eg springs).
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Hydrogeological surveys
Map application with area of significant regional hydrogeological surveys. Results were archived by CGS. Archival, not updated.
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Hydrogeology of the Aš and Cheb regions (Geoplasma-CE)
The application of the map server shows hydrogeological maps and data of the Aš and Cheb regions, results of the Geoplasma-CE project.
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Important geological localities
Map server application creates an overview of the important geological localities in the Czech Republic. The application presents sites in the Czech Republic which demonstrate extremely diverse geological features, occurrences of significant rocks, minerals and fossils. The application enables the user to search according to attributes of the localities, administrative units, map grids etc. Other map layers are also available (geological maps, etc.).
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Interesting geosites
Map application is usable directly in the field thanks to its geolocation using GPS. It briefly and clearly describes geologically interesting sites in the Czech Republic – natural geological outcrops, caves and karst phenomenon or remains of human activities, mainly of mining origin. Description of the geosite includes a photo, note of its protection and other references. Moreover one can choose layer Building and decorative stones with basic information about displayed objects. Topographic and orthophoto maps of the State Administration of Land Surveying and Cadastre serve as background maps.
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Inventory of hazardous waste facilities
This map application displays the abandoned sites used for disposal of mining waste that create a significant hazard for the environment and human health. Information about the type of hazard and the level of risk is included.
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Inventory of mining waste facilities
Map application of situation and details of registered mining waste repository in the Czech Republic. Color differentiation of mining waste repositories distinguishes category and level of exploration.
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Map archive – Czech Republic
Map application allows location and displaying maps from the Czech Republic, which are stored in the archive of the CGS. The result of the search is a bibliographic information and a link to the preview of scanned maps.
- Contact person: Ing. Katarína Černá
- Related web page
- Metadata record about the application
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Mineral information system (SurIS)
This map application provides access to basic information about deposits of mineral raw materials and prognostic resources in the CR, protected areas of mineral deposits, areas protected against specific impacts on the Earth’s crust, prospective areas and mining operations.
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Mining impacts
This map application Mining impacts (Abandoned Mine Lands, Underground Mines) displays basic information about mine workings, undermined areas and sites used for the disposal of mining waste in the same map window.
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Mining maps
Map application gives access to previews of scans and information on mining maps of the Czech Republic registered in the CGS workplace in Kutna Hora.
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Radiometric anomalies and CSUP survey
The map application makes available survey, radiometric and radioecological data of roughly fifty years of work of the former company ČSUP (Czechoslovak Uranium Industry). The maps and attribute tables describe radioactive objects (RO) with radiometric measurements (gamma, radon) and verification works (wells, shafts, trenches, mine works). According to the evaluation of the works carried out, the ČSUP allocated an anomalous area of radioecological risk. On the basis of the data of ČSUP, an estimate of the size of the Rn index was currently made for objects with radon measurement. Another topic is the radiometric research of ČSUP in four categories according to the details of the measurement. The application is complemented by a composition of vectorized maps of the CSUP at a scale of 1:500,000, which show regional geological units, a structural map, a map of U-mineralization and the radioecological risk of geological units.
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Reported mining impacts
Map application gives access to basic information about registered objects (mine workings) or indications of workings listed in the Register of old mine workings. Czech Geological Survey was commissioned by the Ministry of the Environment to administrate the register.
- Contact person: RNDr. Pavel Šír
- Related web page
- Metadata record about the application
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Slope deformations
Map server application presents slope deformations (landslides etc.) in the territory of the Czech Republic mapped by CGS (1 : 10,000) or registred in GEOFOND. Other geoscience map layers are also available: geological and geomorphological units, engineering–geological zones, landslide susceptibility map and quarries inventory.
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Soil map 1 : 50,000
Map server application enables access to soil maps at a scale of 1 : 50,000 of the new digital edition of the CGS (since 2012). Scanning soil maps from older mapping can be displayed on the map sheets, which are still missing vector data.
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Surface water – chemistry
Map server application shows the chemical analysis results of the are available for individual surface water sampling points in the Czech Republic in 1984-2018. At the same time, an areal overwiew of the surface water chemistry in the Czech Republic between 2007-2010 is available. During this period, there was a dramatic decrease in acid deposition and significant improvement in wastewater treatment, the main factors affecting the chemistry of surface streams. For the selected components shows the change from conditions in the years 1984-1996. It is a period when there was probably the greatest pollution of surface waters and their affected by acid rain.
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Territory data
The map application provides basic information for land-use planning according to law § 27 of Act no. 183/2021 Coll. (the Building Act). It includes data of mining areas, protected areas of mineral deposits, areas protected against specific impacts on the Earth’s crust, reserved deposits and approved prognostic resources, registered mine workings (old mine workings), undermined areas, landslide areas, and unprotected mineral deposits. In addition, there is a layer of protection zones of spa springs (Ministry of Health).
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Territory data – spatial information download
Map application provides data for the purpose of urban planning authorities in accordance with law no. 283/2021 Coll. (building law). It allows authorized users to obtain free shp format data and to generate an electronically signed report.. According to Decree no. 500/2006 Coll. it regards: protected deposit area, protected area for special interventions into the earth's crust, mineral resources, abandoned mine lands, landslides and other geological risk areas and old mine workings impacts.
Applications
The Czech Geological Survey (CGS) offers a number of free geoscience web applications. The Czech Geological Survey stores information on the results of geological projects and research activities in specialized databases in the Central Data Store. The data are provided to the public via web applications, which are clearly arranged on a thematic signpost.
soil
impacts of mine workings
engineering geology
geoenergy
land use planning
material documentation
education and promotion of geology
state geological service
- Borehole surveys
- CGS expert opinions
- Hydrogeological surveys
- Inventory of hazardous waste facilities
- Inventory of mining waste facilities
- Mineral information system (SurIS)
- Mining impacts
- Mining maps
- Reported mining impacts
- Slope deformations
- Territory data
- Territory data – spatial information download
The CGS Metadata Catalogue can also be used to search for public CGS web applications.
The Copyright page provides instructions on citing applications.