MW-20220812-AlliePepper-1071.jpg

About Me

I believe the biggest challenges offer the greatest rewards. It is during these challenges that I discover what I am truly capable of. My current project is to scale all 14 of the world's 8000m peaks without the use of supplemental oxygen. To be the first Australian to complete the challenge.


I grew up in Australia’s largest climbing area, the Blue Mountains. However I didn’t discover rock climbing until I was 23 when I signed up to an Outdoor Recreation course at a local TAFE College. I found a career path that I enjoyed and was naturally quite good at, so continued to study Outdoor Leadership. I completed a 10 day technical mountaineering course in New Zealand in December, 1999. This changed my life as I found a sport that I was passionate about. When I finished my Leadership course I headed off to Aconcagua in Argentina to work as an assistant guide on my first high altitude mountain. I felt very strong on the mountain as I was able to take care of others not just myself, so I pursued high altitude mountaineering.

Since that first expedition, mountain climbing has changed the course of my life. I spent around 3 years climbing and guiding in the Andes before I decided I was ready for the Himalaya. In 2007 I embarked on my first 8000m expedition to Cho Oyu 8188m in Tibet. My climbing partner was not able to join me on the summit push from Base Camp due to frostnip. In 8 days I climbed to the summit and back on my own without the use of supplemental oxygen. Only a handful of women in the world have achieved this. 


I have reached the summit of Everest, the fore-summit of Manaslu and in April 2022 became the third Australian to achieve the summit of Annapurna 1, the most dangerous of all the fourteen 8000m peaks. I have also attempted both Lhotse and Makalu without the use of supplemental oxygen. During my expeditions I learn more about what I am capable of and I take these lessons to the next mountain. It is my passion to continue doing what I love on the worlds highest peaks, as that is where my spirit is truly free.  

Ascents Over 5000m

Ama Dablam, Nepal 6812m October 2022

Annapurna 1, Nepal 8091m April 2022

Lobuche East, Nepal 6119m April 2011, April 2017* 
Imja Tse (Island Peak), Nepal 6189m April 2008*, April 2017* 
Aconcagua, Argentina 6962m via Plaza Argentina January 2007*, Febuary 2007*, February 2014*, January 2017*, February 2017* and February 2019* 
Cerro Vallecitos, Argentina 5435m February 2017 

Manaslu fore-summit, Nepal 8159m May 2012

Everest, Nepal 8848m May 2011 
Mera Peak, Nepal 6476m May 2008* 
Cho Oyu, Tibet 8188m without supplementary oxygen May 2007 
Aconcagua via the Guanacos Valley route Febuary 2004*, December 2004*, January 2005*, Febuary 2005* 
Maparaju, Peru 5326m August 2004* 
Artesonraju, Peru 6025m via the Southeast Face August 2004 
Huascaran Norte, Peru 6664m July 2004* 
Vallunaraju, Peru 5686m & 5600m August 2003 and July 2004* 
La Esphinge, Peru 5650m August 2003 
Ishinca, Peru 5530m July 2003* 
Cerro Franke, Argentina 4880m October 2002 
Alpamayo, Peru 5947m via the Ferrari route August 2002 
Toclaraju, Peru 6032m July 2002 
Urus, Peru 5420m July 2002 & July 2003* 
Chopicalchi, Peru 6345m July 2002 
Pisco, Peru 5752m July 2002 
Cerro Ramada, Argentina 6384m Febuary 2001 
Cerro Plata, Argentina 5958m January 2001 and March 2007 
Aconcagua, Argentina 6962m via the Falso Polacos route December 2000* 
*Guided these peaks with clients.