Blinnenhorn

Blinnenhorn (Italian: Corno Cieco) is a 3,374 m summit in the Lepontine Alps, rising on the border between the Swiss canton of Valais and Italy's Piedmont region. On the Swiss side the Goms valley and the municipality of Obergoms form the gateway to this corner of the Alps; on the Italian side lies Val Formazza. The peak needs no technical climbing, yet it is a serious high-mountain outing that crosses a glacier.

What will you see on Blinnenhorn?

The Gries Glacier fills the north-eastern flank. From the summit ridge the views take in the Lepontine and Bernese ranges and the passes linking Valais and Piedmont. The first recorded ascent dates to 1866. With a prominence of about 945 m, the mountain clearly towers over its surroundings.

How do you reach the summit?

The classic line starts at the Capanna Corno Gries hut or at the Nufenen Pass and follows the south-east flank. The Swiss Alpine Club route portal gives 5.5 to 6.5 hours and roughly 1,090 m of ascent. You cross the Passo del Corno and the Griespass, continue over the glacier to the Rothorn Pass (3,097 m), then climb a firn or scree slope and an easy scramble to the top.

From Italy you can approach from the Claudio e Bruno hut, or from Rifugio Margaroli via the Passo del Vannino and the Gran Sella del Gries.

Is the glacier dangerous?

Crevasses are present, so bring glacier gear, travel roped and know how to move on snow. The Gries Glacier has retreated noticeably in recent years and snow conditions change quickly, so ask the huts about current conditions before setting out.

When is the best time to go?

Summer and early autumn usually bring a trail free of deep snow, though crevasses are more exposed then. In spring Blinnenhorn is a popular ski tour: the broad, flat Gries Glacier makes for a long route that is not technically hard but is tiring, best in firn or powder.

Can you combine it with a longer trek?

Yes. The Goms and Brig-Simplon tourist offices describe a seven-day loop from Obergoms through the Binntal and over the Albrun Pass into Val Formazza and back, with an ascent of Blinnenhorn. It is a demanding route of about 105 km.

Frequently asked questions

How high is Blinnenhorn? 3,374 m above sea level.

Do I need a guide? The route is not technically difficult, but it crosses a crevassed glacier. Without experience of roped glacier travel, hire a mountain guide.

Where is the easiest place to start? At the Nufenen Pass or the Capanna Corno Gries hut, the start of the normal south-east flank route.

Can I climb it in winter or spring? Yes, as a ski tour over the Gries Glacier. It calls for good fitness, avalanche assessment and route knowledge.