Pyhrn Pass weight limit for trucking. On the Upper Austrian side west of the pass is the summer and ski resort Wurzeralm, and east of the pass is Bosruck, which is noted for hiking and cross-country skiing. Because the pass is a relatively low one, it has been important regionally since the Stone Age. Pyhrn Pass Pyhrn Pass is a mountain pass in the Austrian Alps between the Austrian states of Upper Austria and Styria. It connects Warscheneck and Bosruck and is at an elevation of . The pass road (B 138) has a maximum grade of 10 percent. Since the middle
Brenner Pass Counts of Tyrol within the Holy Roman Empire. Emperor Frederick Barbarossa made frequent uses of the Brenner Pass to cross the Alps during his imperial expeditions of Italy. The 12th-century Brenner Pass was a trackway for mule trains and carts. Modernisation of Brenner Pass started in 1777, when a carriage road was laid out at the behest of Empress Maria Theresa. Modernisation further took place under the Austrian Empire and the Brenner Railway, which was completed in stages from 1853 to 1867. It became the first trans-Alpine railway without a major tunnel and at high altitude (crossing Brenner Pass at