Hydrogeological map 1 : 50,000 – regions (documentation)
The ArcGIS Server map service displays hydrogeological documentation of maps that were processed during the solution of various types of projects in the CGS. 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).