The Duhamel atlas, also referred to as the Beaunier atlas, is a map series of the early miner surveyor art. It was completed in the spring of 1810 and was used for over 100 years in the Saar coal-mining area. The precision with which the topography was displayed is amazing. The creators of the atlas were Jean Baptiste Duhamel, Professor for Mining at the École practique des Mines de la Sarre in Geislautern and his assistants Michel-François Calmelet and Louis-Antoine Beaunier. They required two years to produce this bound map series which contains 61 pages of concession fields at a scale of 1: 2500. After the Saar region was conquered, the new masters began to systematically reduce the country's natural resources on the left side of the Rhine in 1801. The contract to produce a map series for the award of concessions was awarded on 1 January 1809. The first copy of the Duhamel atlas is currently stored in the National Archives in Paris.