1. ^Christian Thöni, Directory of the mountains of Switzerland
2. ^¹ All mountain heights and prominences are from the 1:25,000 Swisstopo topographic maps.
3. ^The three main sources for first ascent data are:
For the Western Alps; W.A.B. Coolidge, [https://books.google.com/books?id=df4OAAAAQAAJ The Alps in nature and history], Methuen & Co, London, 1908.
For the Central Alps; Gottlieb Studer, Über Eis und Schnee: Die höchsten Gipfel der Schweiz und die Geschichte ihrer Besteigung, Volumes 1-3, Schmid & Francke, Bern, 1896-1899.
For the Eastern Alps: Die Erschließung der Ostalpen, Volumes 1-3, German and Austrian Alpine Club, Berlin, 1894.
Given are the years for the first recorded ascents. In many cases local people or surveyors made earlier ascents. In particular, chamois and ibex hunters are expected to have reached many summits. Years in italics indicate that it is known that an earlier ascent was made, for example by the presence of artifacts on top or the summit's prior use as a triangulation point.
4. ^High point north of the Tieralplistock
5. ^¹ The lowest col between equally high Gletscherhorn and Piz Gallagiun is the 383 m deep Passo de la Prasgnola. They share the 2694 m key col Pass da la Duana.