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This report is a case study on use of Electrical Resistivity Tomography (ERT) alongside other methods to have a better understanding of surface depressions and their formation in gypsum karst region of Latvia. Study territory is well known gypsum karst region. It is a relatively flat area with up to 5m thick Quaternary cover overlaying Upper Devonian Salaspils Formation gypsum sediments. Previous studies have identified several sinkhole formations in the area. Remote sensing methods like analysis of Digital Elevat...