Theodulhorn, Alpine summit between Valais, Switzerland and Aosta Valley, Italy
The Theodulhorn is an Alpine summit at 3,469 meters (11,381 feet) situated on the border between Switzerland and Italy. A prominent glacier-covered north-facing slope defines its appearance, with climbing routes accessible from both the Swiss and Italian sides.
The mountain takes its name from Saint Theodul, the patron saint of Valais, whose name appears throughout the region. In the Middle Ages, the pass became a recognized trading route that connected Alpine communities across the border.
The pass below the summit served for centuries as a crossing where mountain communities on both sides conducted trade and exchange. Today this connection remains visible in how hikers move freely across the border through the same routes their ancestors used.
The ascent is possible from Zermatt in Switzerland or Breuil-Cervinia in Italy, with both routes well marked and clearly defined. The best time to visit is from June through September, when snow coverage diminishes and the terrain becomes more accessible for walkers.
The peak marks the eastern end of the Furggrat ridge, a long mountain crest that extends from the Matterhorn eastward. This ridge traverse connects multiple summits in succession and ranks among the region's most cherished mountain walks.
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