Roggenflue

Roggenflue is a lookout summit in the Solothurn Jura, rising above Oensingen in the canton of Solothurn. It sits on the Roggen ridge at roughly 995 to 998 metres above sea level, depending on the source. Hikers come for the view across the Swiss Mittelland to the Alps, and the peak makes a quiet day trip from Balsthal, Holderbank or Egerkingen.

What can you see from Roggenflue?

The summit looks out over the Mittelland, the broad plateau between the Jura and the Alps, with the alpine chain on the horizon. A panorama board at the top helps you name the peaks. Roggenflue is described as the highest point of the Roggen ridge, so the outlook also takes in the surrounding Jura valleys.

How do you get to Roggenflue?

Several marked trails reach the top:

• Holderbank – Tiefmatt – Roggenflue – Kluser Grat – Balsthal: a T2 route of about 10.2 km and 3 h 25 min. The descent along the Kluser Grat ridge is steep, with some chain-protected sections.
• Klus – Egerkingen loop: about 13.3 km, grade T1+, around 750 m of ascent, passing Chluser Roggen, Roggenflue, Roggenschnarz and Schlosshöchi.
• Jura Höhenweg, Balsthal to Hauenstein stage: a long, steady climb out of Balsthal leads over Roggenflue.

Trailheads are reached by train and local bus. This is mountain terrain, so wear proper footwear.

When is the best time to go?

Pick a clear day if you want the Alps in view. From May to October, a bus runs to the "zum Roggen" restaurant near the ridge on Saturdays, Sundays and public holidays, which shortens the climb from Oensingen. The Kluser Grat descent turns slippery when wet; in that case the alternative via the Balsthaler Roggen is the better choice.

Practical tips

• Carry water and snacks, as there are no shops on the trail.
• Check the current bus timetable before you travel, since seasonal services change.
• The routes link up with other Jura paths, so you can shorten or extend the day easily.
• The Alt Falkenstein castle ruins near Balsthal are a good addition to the walk.

Frequently asked questions

How high is Roggenflue?

About 995 to 998 m. Some sources give 995 m, others 998 m.

Is the hike difficult?

Most routes are rated T1+ to T2. The hardest part is the steep, partly chained Kluser Grat section.

Where should I start?

From Balsthal, Holderbank, Klus or Egerkingen. From Oensingen you can use the seasonal bus to the ridge restaurant.

What is the view like?

The Mittelland and the Alps, with a panorama board to identify the summits.