In 1630 Guillaume Le Vasseur, sieur de Beauplan, travelled to the Polish-Lithuanian Commonwealth to begin a seventeen-year military career in the Crown army. His account of this period was published in 1660 as La description d'Ukraine. In addition to providing a coherent tableau of 17th century Ukrainian landscape, people, flora, and climate, Beauplan's work provides a major cartographic description of this region. The purpose of the Gazetteer of Beauplan's Ukraine (GBU) project is to provide a georeferenced database for places (features) shown on Beauplan's maps.