The entire massif is contained within the canton of Bern, as it lies north of the main crest and water divide of the Bernese Alps.

Ascent is from the Blüemlisalphütte (2,840 m), over the glacier, past the Wildi Frau (3,274 m) The Blüemlisalp forms a ridge of great height, cut away in precipices on the southeast side, surmounted by four principal peaks, in the following order, reckoning from east to west: Morgenhorn (3,620 m), Wyssi Frau (3,648 m), the Blüemlisalphorn (3,660 m) and the Oeschinenhorn (3,486 m).

In front of the main ridge, as seen from the northwest, e. g. from the Dündenhorn, are seen three minor peaks which project as steep islets of rock from the great glacier-fields that cover that side of the mountain.

[4] The highest peak was ascended in 1860 by Leslie Stephen, accompanied by R. Liveing and J.K. Stone, with Melchior Anderegg and Pierre Simond of Argentière as guides.

Then mounting over snowfields, and the glacier lying between the Wilde Frau and the Ufem Stock, they passed behind, or south, of the latter summit, and gained the depression between the Blüemlisalp Rothhorn and the highest peak at 6 a.m.