SwitzerlandMobility’s Alpine Panorama Route links St. Margrethen with Aigle across the northern Alpine foreland. National Route 4 brings together steep climbs, mountain farms and views of the Alps, with towns along the way offering places to break up the journey.
From the Rhine valley into Appenzell
The eastern end begins in St. Margrethen. After an initial look towards the Rhine, the route climbs through vineyards, with views over the St. Gallen Rhine Valley and towards the Alps. The first section continues through the rolling countryside of Appenzell, where farms and villages sit beneath the Alpstein mountains.
Heiden offers a cultural stop at the Henri Dunant Museum. The route then crosses the Goldach before Trogen and continues towards Appenzell, whose decorated houses mark the end of Switzerland Tourism’s first suggested stage. Although the approach begins gently, the climb makes this a demanding opening to the trip.
Across the Alpine foreland
Beyond Appenzell, the itinerary continues towards Glarus and Flüelen before reaching Sörenberg and Thun. SwitzerlandMobility’s route profile identifies Klausen Pass on the crossing, while the wider journey passes through a landscape of mountain settlements, gorges and working farms.
West of Thun, the Fribourg region presents a sequence through Fribourg and Montbovon towards Aigle. These towns can help riders divide the route into a longer journey or select a section that suits the time available. The full itinerary is physically challenging, so its mountain character deserves attention when choosing daily distances.
The western approach and Petit Hongrin
From Montbovon, the route climbs through Alpine pastures towards Hongrin before descending towards the Rhône valley and Aigle. This western section passes through the Petit Hongrin military shooting area between La Lécherette and Luan, where access is restricted.
The Fribourg tourism authority states that from 1 July to 15 August cyclists may pass during military operations, although short waits are possible. From 1 to 30 June and 16 August to 31 October, cycling access is limited to weekends. Other closures apply in winter and spring, including the road between Plan d’en Haut and Luan from 1 November to 31 May. Follow local instructions and confirm access before travelling.
Planning the ride
The route’s repeated climbs call for a realistic assessment of fitness and daily distance. Switzerland Tourism advises checking route and weather conditions with local information offices: seasonal weather can close or interrupt sections.
Use SwitzerlandMobility’s route information alongside local advice when choosing the direction and sections of your ride. Treat the published stage towns as planning aids, and allow the mountain terrain and the Petit Hongrin access rules to shape the itinerary.