An increasing passion for first ascents and remote areas may be detectable in this list; where possible all ascents, even of technically demanding routes, are made in alpine style.
Bruce is a member of the venerable Academic Alpine Club of Zurich (AACZ), and of the British Mountaineering Council (BMC).
Bruce, a Scottish Theoretical physicist living in Switzerland, started climbing when he was a graduate student at MIT. His motivation was always to get up higher and more challenging mountains, and weekends climbing rock and ice, or camping in the New England winter, were always training runs for bigger things. At first this meant the western US, and his first glaciated mountain was Mt Rainier. His first ``high'' mountains were the Mexican trio of Popocatepetl, Iztaccihuatl and Citlaltepetl (Orizaba), and this led quickly to his first expedition-sized mountain, Denali.
Since then Bruce has made countless weekend-sized trips in Japan, the Alps, the Western US, New Zealand, Africa and Patagonia (although getting to the last two is an expedition), and has compiled the following list of expeditions in the Greater Ranges: