Valais East 48 selected day walks round Zermatt, Saas, Fiesch, Brig and Simplon as well as a 6-day round walk through the Matter valley and a 3-day walk from the Rhône valley over the Simplon pass to Gondo ; [the finest valley and mountain walks] - Waeber, Michael; Steinbichler, Hans (Rother, 2001)