This map by Oldenburg “Deichgraf” (state officer in charge of the levees) Johann Wilhelm Anton Hunrichs dates from 1761 and is the result of meticulous new cartographic surveys that were carried out in the middle of the 18th century. The map – also called “Vogteikarte” – emphasizes the boundaries of the “Vogteien” (bailiwicks), shows the course of the levees and – for the first time – depicts roads with double lines. It also shows the large areas of bog land, the more densely populated marshland along the coast and in the river valleys, as well as the sparsely inhabited flatland of the Geest. These three types of landscape dominate the Oldenburg Land until today, even though many bogs have been drained in the last centuries.