The Catalan Transversal Range is a system of minor mountain ranges at the eastern end of the Pre-Pyrenees, between the Osona and Garrotxa comarques. The existence of the Catalan Transversal Range has made communications in the northern areas of Catalonia difficult in the past, especially between Northeastern Catalonia and Western Catalonia, a problem that has been partly solved with the development of the Eix Transversal.