In many disciplines in the humanities and social sciences, like histo-ry, human geography and archeology, historical maps are of great importance as a source of information. They are used frequently in different studies for a vari-ety of problems. Since the last decade or two, it has been more and more com-mon to use data from historical maps in GIS-analysis. On Gotland, the large-scale map
... [Show full abstract] production has a more then 300-year history. There are several differ-ent map generations that are produced for different purposes. The scope of this work is a map series produced over the province of Gotland in 1693-1705. These maps have extensive text descriptions of different aspects of the mapped features. Via a code marking system they are attached to the maps. In this work a semantic analysis and an ontology over all the concepts found in the maps and text descriptions will be presented.