The Untersberg is the mountain where Charlemagne is said to sleep, waiting to be called forth in Germany's hour of need. The Berchtesgadener Hochthron is its highest point, at 1,972 m on the Bavarian side of the border, accessible only on foot, with a summit that also hosts a Galileo navigation test station.
The Story
The Untersberg looms over Salzburg from the south and over Berchtesgaden from the north, and it carries more legend per metre of altitude than almost any mountain in the German-speaking world. The medieval story places Emperor Charlemagne inside the mountain, sleeping with his court, his beard growing around a stone table, waiting until Germany's need calls him out again. Some versions substitute Frederick Barbarossa. The legend is old enough to appear in medieval sources and persistent enough that it was still being retold in 19th-century Romantic literature.
The Berchtesgadener Hochthron is the summit of this massif, at 1,972 m on the Bavarian side. It sits on the international border, roughly 7 km north of Berchtesgaden and 8 km east-southeast of Bad Reichenhall. The summit itself can only be reached on foot: from the Austrian Geiereck cable car station, the plateau crossing takes 2-3 hours; from the Bavarian side via the 2007 Hochthronsteig via ferrata, allow a full day with an early start. The via ferrata is rated D (grade 4.5) and involves 390 m of elevation gain through exposed passages, including the Fotoquergang traverse.
At the summit, the view extends across nine Berchtesgaden massifs, the Chiemgau Alps, the Salzkammergut peaks, the Watzmann, and Königssee. The prominence of 1,278 m means the summit stands well above its surroundings; on a clear autumn day the Bavarian plain is visible far to the north. The summit also hosts a Galileo satellite navigation test station, making it the kind of place where a medieval legend and modern navigation research coexist without either seeming out of place.
The Stöhrhaus mountain hut, operated by the Austrian Alpine Club, sits 470 m west of the summit and is the only shelter on the route. It provides food and accommodation in season and serves as a practical base for both the summit ascent and the traverse back to the Geiereck.
Visiting
The summit is accessible only on foot; no lift or cable car reaches the Hochthron. From the Austrian side: take the Untersbergbahn cable car to the Geiereck station, then hike across the plateau (2-3 hours one way, moderate to demanding terrain). From the Bavarian side: the 2007 Hochthronsteig via ferrata from Marktschellenberg (rated D, full day, via ferrata equipment required). The Stöhrhaus hut is the only shelter; check opening season before departing. The summit at 1,972 m is fully exposed; stable summer weather essential. No facilities at the summit itself. Best undertaken June through October. Combine with a Geiereck cable car ride if approaching from the Austrian side.