Untermühl at the mouth of the Große Mühl into the Danube

Untermühl lies in the forested gorge valley of the upper Danube, where the Große Mühl flows into the Danube. The river confluence, shipping, and paths through the wooded valley give the place several distinct facets. Three topics are especially useful when planning a trip: its history as a riverside settlement, hikes along the Große Mühl, and cycling routes that reach Untermühl or start here. If you are looking for a hotel in Untermühl, you can first consider whether local history, hiking, or cycling matters most to you.

Local history on the Danube and Große Mühl

Untermühl developed around 1200 as a settlement of the lordly fishermen and ferrymen serving Neuhaus Castle. Its location at the confluence also shaped the town’s later transport history. During timber floating in the 18th and 19th centuries, up to 130,000 cubic metres of cut logs were stacked in Untermühl. At that time, the terminal of the Schwarzenberg timber-flushing canal was also located where the Große Mühl meets the Danube. Neuhaus granite was loaded onto ships in Untermühl for onward transport; for a long time, the town also served as a supply point for Danube shipping.

Changes to the townscape are also part of its history: Old Untermühl was demolished and flooded during the construction of the Aschach Danube power plant in 1964. Untermühl was rebuilt on raised ground. The Schlosstaverne has been owned by the Ernst family since 1594. The Kettenturm is considered the only toll tower still preserved along the Danube. These historical connections make river traffic, granite, and the town’s development different points of interest during a stay.

Hiking around Untermühl

The Mühltalweg is an easy hike through the wooded valley of the Große Mühl, reaching Untermühl at its mouth into the Danube. The hike from Untermühl to Neuhaus Castle follows a different route: it climbs steeply via stone steps and an old road to the castle, then returns via the Jagersteig trail. The two routes therefore have distinct characteristics: the Mühltalweg focuses on the wooded valley, while the route to the castle involves a substantial ascent. Check trail conditions before setting out.

The Donausteig trailhead “Untermühl,” located in the car park in front of the traditional Gasthof Ernst, serves as a landmark for another tour. The Kettenturm Danube viewpoint offers views over the Danube valley. Both the trailhead and the viewpoint provide specific reference points for planning a hike, without requiring a fixed route between them.

Cycling routes and granite in the Mühlviertel

The R1.08 Danube–Granite Loop starts at the Untermühl boat landing. It crosses the mouth of the Große Mühl and then climbs 300 metres in elevation to the plateau of the Mühlviertel Granite Highlands. For cyclists, both the starting point and the climb described are practical considerations when planning. On the Mühltal cycle path, cyclists can also cross the missing section at Untermühl by taking the Untermühl–Kaiserhof–Bremsberg cable ferry. Ferry service may depend on water conditions, so check before setting off whether it is operating.

Nearby, in Plöcking, the Granite Experience World includes a natural-stone educational trail and the Hammerhütte, a small museum with film screenings and craft demonstrations. The Feldbahnweg offers another granite-related experience: this half-day tour gives visitors insights into the world of granite and its transport in the 19th century. Along with the history of shipping granite from Untermühl, these attractions show how the rock features in the region from different perspectives.

For an overview of the wider destination: Rohrbach.