The number of ascents and failed attempts up to 2004 is extracted from the Alpine Club Himalayan index. These are the number of expeditions (not individuals) that announced their ascent or attempt in a journal. They are probably quite accurate for the rarely climbed peaks (though omissions were noted), but greatly underestimate the number of ascending parties on the easier and/or more popular mountains, like most eight-thousanders. For instance, Mt Everest has been scaled 2,251 times by individuals up to 2004 [3].
everesthistory.com
The number of ascents and failed attempts up to 2004 is extracted from the Alpine Club Himalayan index. These are the number of expeditions (not individuals) that announced their ascent or attempt in a journal. They are probably quite accurate for the rarely climbed peaks (though omissions were noted), but greatly underestimate the number of ascending parties on the easier and/or more popular mountains, like most eight-thousanders. For instance, Mt Everest has been scaled 2,251 times by individuals up to 2004 [3].
peaklist.org
The prominence data were extracted from a combination of maps and computer aided analysis of NASA's 3" SRTM data. Prominences over 1,450 m were copied from this website.
rutgers.edu
echidna.rutgers.edu
For Nepal, the heights indicated on the Nepal Topographic Maps are followed. For China and the Baltoro Karakoram, the heights are those of "The Maps of Snow Mountains in China". For the Hispar Karakoram the heights on a Russian 1:100,000 topo map [1]Archived 2008-04-27 at the Wayback Machine seem to be more accurate than the customarily quoted heights probably based on US army maps from the 50s [2]Archived 2013-07-25 at the Wayback Machine. Elsewhere, unless otherwise indicated, heights are those in Jill Neate's "High Asia".
sol.co.uk
For Nepal, the heights indicated on the Nepal Topographic Maps are followed. For China and the Baltoro Karakoram, the heights are those of "The Maps of Snow Mountains in China". For the Hispar Karakoram the heights on a Russian 1:100,000 topo map [1]Archived 2008-04-27 at the Wayback Machine seem to be more accurate than the customarily quoted heights probably based on US army maps from the 50s [2]Archived 2013-07-25 at the Wayback Machine. Elsewhere, unless otherwise indicated, heights are those in Jill Neate's "High Asia".
web.archive.org
For Nepal, the heights indicated on the Nepal Topographic Maps are followed. For China and the Baltoro Karakoram, the heights are those of "The Maps of Snow Mountains in China". For the Hispar Karakoram the heights on a Russian 1:100,000 topo map [1]Archived 2008-04-27 at the Wayback Machine seem to be more accurate than the customarily quoted heights probably based on US army maps from the 50s [2]Archived 2013-07-25 at the Wayback Machine. Elsewhere, unless otherwise indicated, heights are those in Jill Neate's "High Asia".
