The northern third of the country is known as the Oesling, and forms part of the Ardennes. It is dominated by hills and low mountains, including the Kneiff near Wilwerdange, which is the highest point, at . Other mountains are the Buurgplaatz at  near Huldange and the Napoléonsgaard at  near Rambrouch. The region is sparsely populated, with only one town (Wiltz) with a population of more than four thousand people.