Lake Nemrut the world. Nemrut Caldera is world's second largest one. The western half of the crater is covered by the lake. AT the summit, there are five lakes, two of them existing permanently and the others seasonal. The biggest of the lakes is Lake Nemrut in the form of crescent. It contains freshwater of colorless, odorless and drink water quality. Lake Nemrut is situated at an elevation of about above main sea level. It has an area of , and its average depth is about with a maximum depth of . Nemrut Caldera is on the youngest volcanic cone in Turkey,
Mount Barney (Queensland) and it features prominently in a number of their stories. For Aboriginal people the peak has traditionally been regarded as a place to avoid. On 3 August 1828, explorer Allan Cunningham named the mountain "Mount Lindesay". However, the New South Wales Surveyor-General Thomas Mitchell is believed to have renamed it in the 1840s to "Mount Barney", after George Barney, a colonial engineer. Mitchell is believed to have assigned the name "Mount Lindesay" to the current Mount Lindesay (which Cunningham had originally named "Mount Hooker"). The first European to climb Mount Barney was Captain Patrick Logan, who reached the East Peak