I took Trail 6 (Alpenpaesse-Weg) out of Gspon and followed it to Faeriga. From there, you can just go straight up the mountainside and aim for the Simelihorn ridge, which is what I did (you cross a nice Bisse in the process). Then I followed the rugged ridge to Mattwaldhorn (there is still some faint white-and-red paint on the...