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. The next stop, at Mitterbach am Erlaufsee, is in the province of Styria. This is followed by Mariazell station, the terminus of the line. Whilst this station serves the pilgrimage center of Mariazell, it is actually located some north in the municipality of Sankt Sebastian. Connection is made here with the Museumstramway Mariazell-Erlaufsee, a standard gauge heritage steam tramway that operates to the nearby Erlaufsee. The Mariazell line formerly continued to Gußwerk, which was used mostly for freight traffic to a large sawmill. It has been out of service since 1988, and the tracks were torn up in 2003. Museumstramway Mariazell-Erlaufsee is planning to take over a short part of the right-of-way for a project to build a tram line from the railway station into town. The Branchline (Krumpe) The now largely closed branch line was known to locals as the Krumpe (Lower Austrian dialect form of the word krumm, meaning "crooked" in German), as a reflection of its indirect nature. It left the main line at Ober-Grafendorf and was an unelectrified branch that lead through the foothills of the Alps in a roughly westerly direction by way of Kilb, Mank, Sankt Leonhard am Forst, Ruprechtshofen and Wieselburg an der Erlauf to Gresten. At Wieselburg an der Erlauf, it met and crossed the standard-gauge Erlauf Valley Railway between Pöchlarn and Kienberg-Gaming. The stretch of the line between Wieselburg an der Erlauf and Gresten still exists as a standard gauge line, having been regauged in 1998 in order to better feed freight traffic onto the Erlauf Valley line. The line from Ober-Grafendorf to Wieselburg an der Erlauf still exists but is not