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 Sparrowhawk west into Spray Lakes Reservoir, both of which empty to the Bow River. Mount Sparrowhawk Mount Sparrowhawk is a mountain summit located in Kananaskis Country in the Canadian Rockies of Alberta, Canada. Mount Sparrowhawk's nearest higher peak is Mount Bogart, to the southeast. Sparrowhawk's south slope was a candidate to be used as a ski hill for the alpine events at the 1988 Winter Olympics, but nearby Mount Allan's Nakiska was selected instead. Mount Sparrowhawk was named in 1917 for the HMS Sparrowhawk, a British destroyer that sank during the Battle of Jutland in World War I. The mountain's name