[2] In 1985, Siula Grande was climbed by Joe Simpson and Simon Yates.

Siula Chico is a subpeak about 6,260 m (20,540 ft) high separated from Siula Grande by an approximately 6,000-metre (20,000 ft) col. Mountaineers considered that the easiest route to its summit was via Siula Grande's summit and it was so climbed by Manfred Sturm's 1966 expedition.

[8] Spanish alpinists Jordi Corominas and Oriol Baro made the first ascent of Chico's west face, and second ascent of the peak, in May 2007.

[2] According to some researchers the glaciers between Siula Grande and Yerupaja show a broad increase in the number, size and frequency of crevasses, and bergschrunds.

As a result, climbing routes used in the 1970s are today considered impracticable.