DescriptionGotthard-Gruppe.png Deutsch: Lagekarte der Gotthard-Gruppe. Date 14 February 2015 Source Own work Map was created using: Open Street Map Switzerland
after SOIUSA with legend, A4 Date 5 February 2016 Source Wikimedia Commons https://de.wikipedia.org/wiki/Datei:SOIUSA-sezioni.png Author Luca Bergamasco