Poor conditions and an approaching bad weather front made a completely free ascent impossible.
David was leading most of the pitches in what he described as "really tough climbing" via sat phone.
"The day before I didn't feel well so I thought we had no chance of summiting. But when we got up the next day everything worked out perfectly."
At the top, photographer Corey Rich was also showing the first signs of altitude sickness. After the ten-hour climb they abseiled and arrived at the bivi on the sun terrace late at night from where they descended to basecamp the following day.
David Lama and Peter Ortner are now staying in Pakistan to climb Chogolisa (7668m) as a training run to find out how they perform at high altitude.
David Lama has several sponsors including Mammutand Red Bull
18 year old Will Bosi of Edinburgh has just returned from a short but very productive trip to Siurana, Spain. In the space... Read more
Back in August 2016, Alex Megos made the first ascent of Fight Club, 9b, in Banff National Park, near Canmore, Canada. Now there... Read more
Austrian mountaineering legend Peter Habeler recently climbed the North face of the Eiger via the Heckmair Route once again, at... Read more
This week's Friday Night Video is of Dani Arnold and David Lama's expedition to Alaska in 2015. On this trip... Read more