Province: British Columbia
Location: Forks off Dunster Station Road
Origin of the name unknown.
This mountain on the border between Alberta and British Columbia is also on the 120th meridian of west longitude. South of Intersection Mountain, the interprovincial border is along the continental divide. North of Intersection Mountain, the border is on the 120th meridian.
British Columbia’s boundary was specified by the British Parliament in 1866, in the act that united the colonies of Vancouver Island and British Columbia. Article 7 states that B.C.’s boundary on the east is “the Rocky Mountains and the 120th meridian of west longitude.”
Possibly named by the Alberta-British Columbia Boundary Commission in 1923.
Origin of the name unknown.
A feature named by the Alberta-British Columbia Boundary Commission.

Billings Butte – Robson Peak – Iyatunga Mountain. Panonamic view of the Robson massif and adjoining mountains, with the great Hunga glacier in the foreground.
Photo: Charles D. Walcott, 1912
National Geographic Magazine 1913

Working up through the vast and broken front of Hunga Glacier. Photo: R. C. W. Lett, 1911
National Geographic Magazine 1913
“Hunga” presumably a word in an Indigenous language.
Origin of the name unknown.
Hugh Drummond Allan [1887–1917] was born in Scotland and came to Canada around 1907. He became a British Columbia land surveyor in 1912. His professional work was carried on mainly in the Kamloops district and the North Thompson valley. In 1913 he surveyed in the Canoe River area. “From Mile 49 on the Grand Trunk Pacific I proceeded with my party by wagon and reached the Canoe River in one day,” he reported.
After the start of the first World War Allan returned to Scotland and enlisted. In 1916 he was wounded, and in 1917 he was killed leading his company at Croiselles, France. Lieutenant Allan was shortly predeceased by his wife and infant child.
(There is another Hugh Allan [1810-1882], a Scottish-Canadian shipping magnate, apparently unrelated.)