Nemrut (volcano) of the earliest trade routes. Two eruptions of Nemrut were probably witnessed by people of Urartu, an ancient state located in the eastern Turkey. These eruptions occurred c. 787 BC (period of King Menua) and c. 657 BC (period of King Rusa II), and the latter eruption might cause the sudden disappearance of the city Uaiais located 30 km east of Süphan. In the 1980s, Japanese volcanologists studied the evolution of gases inside the caldera of Nemrut. They found that the ratio of helium isotopes He/He is 1.06, which indicates volcanic activity (most of the measured helium evolved from the
Mount Bogart runoff from the mountain drains east into the Kananaskis River and west into Spray Lakes Reservoir which both empty to the Bow River. Mount Bogart Mount Bogart is a summit located in Kananaskis Country in the Canadian Rockies of Alberta, Canada. Mount Bogart's nearest higher peak is Wind Mountain, to the north. Mount Bogart is situated northwest of Mount Kidd, and both can be seen from Highway 40 near the Kananaskis Village junction. Mount Bogart was named by Donaldson Bogart Dowling (1858-1925), after his mother, whose maiden name was Bogart. Donaldson Dowling, an engineer with the Geological Survey of Canada,