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River ferries were historically important in crossing medium- and large-sized watercourses, with rivers often a barrier to trade routes and journeys. Using old medium-scale Austrian military topographic maps from 1763–1768, 1836–1852, and 1876–1880, Prussian maps from 1825 and 1877, and Czechoslovakian maps from 1953–1955, we systematically localized the ferries within what is now the Czech Republic over a monitoring period between the mid-18th century and the present. We also analyzed the map keys of relevant surveys to examine ways of depicting the ferries in the maps. In this context, a database of river ferries in the Czech Republic was prepared in GIS, containing all localities where river crossing ferries were shown on the topographic maps. A total of 514 historical ferry sites were identified on the military mapping survey maps, with an additional 28 recognized from auxiliary sources that did not appear in the military topographic maps. The sample information obtained from the maps was also verified by using independent sources.

There Used to Be a River Ferry: Identifying and Analyzing Localities by Means of Old Topographic Maps