From there, the railway follows a wooded, steep mountain ridge on a slight downhill gradient. It passes over the "Saugrabenviadukt", the railway's highest viaduct, and reaches Annaberg station on the saddle. Just beyond the Lassing Reservoir, which feeds the Wienerbruck power station, lies Wienerbruck-Josefsberg station, a favorite starting point for hikes into the "Ötschergräben", steep-sided, wooded gorges. After a loop around the lake, the line meets the Erlauf River. This stretch of the line is said to be the railway's greatest highlight for those with great romanticism for the wild: In between, along a row of short tunnels, the traveller gets a look into the "Zinken" ("tines"), as the craggy Erlauf gorge is called here. The halt at Erlaufklause is the last stop in the province of Lower Austria.