It is accessible from Holzegg by a hiking trail which is opened during the summer months only. Geologically the Mythen is a penninicKlippe.
The name is pronounced [ˈmiːtən]; it is in origin the plural referring to the Grosser and Kleiner Mythen collectively, each of which had the name Mythe (feminine) in the singular. The name is unrelated to the now-homographic German word for "myth"; Weibel (1973) derives it from Latin meta "cone, pyramid". Until the late 19th century, the name of the mountain was still feminine, die Grosse Mythe; after c. 1870, the masculine gender became increasingly common in written German although dialectically the feminine remains current.
^Retrieved from the Swisstopo topographic maps. The key col is the Holzegg (1,405 m).
^Viktor Weibel, 'Namenkunde des Landes Schwyz. Die Orts- und Flurnamen in ihrer historischen Schichtung und dialektologischen Relevanz'. In: Studia Linguistica Alemannica vol. 1, Frauenfeld, 1973. Use of y for [iː] in Swiss toponyms is widespread (as e.g. in Schwyz itself) and arises with a ligature ij as used 15th-century handwriting.