The Monte Rosa massif, flanked by glaciers, is the highest mountain in the Swiss Alps. Depending on the method of counting, it has ten peaks higher than 4,000 m, and lies partly in Italy. The Dufourspitze (4,634 m, right, black rocky crest) in the Monte Rosa massif is Switzerland’s highest peak.The Dufour peak is the highest summit in Switzerland and one of the ten main summits of the Monte Rosa massif. Its rival is the Dom, the highest mountain located entirely within Swiss territory. The 150th anniversary of the first ascent was celebrated in 2005: Federal Councillor Joseph Deiss, together with Zermatt mountain guides who were descendants of the first conquerors of the mountain, climbed from the old Monte Rosa cabin to the peak in a seven-hour tour. There he met up with the Italian minister of agriculture, Giovanni Alemanno.