Boundary markers of Mataró is a set of geographic information represented in an interactive viewer. This data set shows the location of the land markers of the municipality of Mataró that between 1910 and 1930 the Geographic and Statistical Institute installed throughout the Spanish state to establish an official division of the municipalities. Each milestone is represented with a point, which is displayed interactively, offering us a PDF file with complementary information about the selected marker, or to access to a 360º view of the place where the landmark is located. In addition, we can consult the corporate term limit of the City Council of Mataró, the term limit according to the Generalitat of Catalonia or the term limit according to the map of 1920.