Graz Highlands Passail Basin, the adjacent Semriach Basin to the southwest and the Teichalm region to the north. The Graz Highlands are bounded: In the south and southeast the Graz Highlands transition into the East Styrian Hills and Graz Basin. The most important summits are the: Graz Highlands The Graz Highlands or Graz Mountains () are a low mountain range north of the Styrian state capital of Graz in Austria. It is part of the Central Alps and forms the start of the Prealps East of the Mur. From a geological perspective, regions on the west bank of the Mur, which are
Trams in Graz gauge and became part of the tram network. The resulting long outer section of tram route 1 still retains many light railway features, with its off-street routing and long stretches of single track. The Graz tram network reached a peak in 1950. Growing car ownership, and the growth of residential areas in outer reaches of the city not served by the trams, lead to a fall in tram usage and eventually, after 1950, the closure of several tram routes. The city introduced trolleybuses in 1941 to serve the outer areas of the city, but these were replaced by motor buses