This study presents the history of brown coal mining in the southern Slovak brown coal basin according to archive research in the inter-war period. The author has written the mining history on the basis of documents located in the State Mining Archive in Banska Stiavnica, the State Archive in Banska Bystrica and its branch at Velky Krtis and in the Archive of the Dolina mine in Velky Krtis. He has processed the history of these localities where mining of brown coal mining occurred in the analysed period after establishment of particular mining locations according to cadastral territories. The mining is considered as a process by which coal was obtained to be sold commercially or used in the agricultural economy. The author analysed a total of 13 localities.