Loch Ness (; Scottish Gaelic: Loch Nis [l̪ˠɔx ˈniʃ]) is a large freshwater loch in the Scottish Highlands. It takes its name from the River Ness, which flows from the northern end. Loch Ness is best known for claimed sightings of the cryptozoological Loch Ness Monster, also known affectionately as "Nessie" (Scottish Gaelic: Niseag). Loch Ness lies along the Great Glen Fault, which forms a line of weakness in the rocks which has been excavated by glacial erosion, forming the Great Glen and the basins of Loch Lochy, Loch Oich and Loch Ness.
https://en.wikipedia.org/wiki/Loch_Ness