The aim of the present article is to present the main results and overviews stemming from a study about the relationships between Bohemia (Czech Republic) and Gaul between the 4^th and 1^st century BC (LT B-LT D). For that, a collection of 61 types of artifacts, constituted of 230 items, has been defined, forming as many “contact features” between both areas. These features underline the dynamism between these contacts, on both chronological and spatial grounds. The study of this corpus also allows us to consider the geographical communications between the regions of southern Germany and western Austria. The role of the Danube is the primary route even if it has been possible to identify some other minor routes. The qualitative and quantitative analysis data is completed by comparing the forms of contacts (exchanges, migration, etc.).