In 1883, shortly after he had qualified as a
barrister, Graham made a visit to the Himalayas in the company of Swiss
Alpine guide Josef Imboden of
St. Niklaus in the canton Valais. While many of the lower mountains of the Himalaya had been climbed by surveyors and explorers, mainly to make observations of more distant peaks, Graham was the first person to visit the range solely for the purpose of mountaineering. He spent the spring trekking in the region of
Kanchenjunga, but he was forced to return to
Darjeeling by the cold weather and the fact that a
porter had accidentally burned his boots. At the end of June the party set off for
Garhwal where they explored the region around
Nanda Devi. Unable to penetrate the
Nanda Devi Sanctuary they turned their attention towards
Dunagiri, where Graham claimed to have reached a height of around 22,700 ft (6,920 m) before being forced to retreat by bad weather. Graham and his companions next attempted a nearby peak, which they believed was the one marked on the map as A21, now known as
Changabang. They made an ascent by the West Ridge, which Graham described as "a fair climb, but [one that] presented no great difficulties." Modern observers, however, agree that whatever mountain Graham climbed it was not Changabang, which from the west presents a sheer wall which was not climbed until 1976, and certainly not the easy ridge that Graham described. It is more likely that he was on the wrong mountain; possibly a subsidiary summit on the southern ridge of Dunagiri. Graham's confusion was partly due to the poor quality of the maps of the area, and on his return to civilisation he was critical of the
Great Trigonometric Survey, suggesting that its surveyors should be trained in mountaineering by the
Swiss Army, whom he credited with the finest cartographic work in the world at the time. The criticism was not well received by the Survey, and it may have made Graham more enemies to cast doubt on his accomplishments. After Kabru, Graham attempted several other mountains in the area, but the onset of winter prevented him from making serious progress on any of them. However, it was supported by climbers such as
Norman Collie,
Thomas Longstaff,
Douglas Freshfield, and
Carl Rubenson – Freshfield having travelled extensively in the same area himself and Rubenson having reached the same point on Kabru in 1907. In a more recent history, Walt Unsworth argued that the vagueness of Graham's account was to be expected from a man who was a mountaineer rather than a surveyor, and that now
Mount Everest has been climbed in a single day without oxygen, Graham's claims seem less outlandish than they once did, so that he should perhaps be credited with the ascent after all. In a 10-page analysis in 2009, Blaser and Hughes argued that "it is time to put the doubts to rest, and give Graham, Boss and Kauffmann their due credit for an extraordinary achievement". ==Later life==