The terrain of Kazakhstan includes flatlands, steppe, taiga, rock canyons, hills, deltas, snow-capped mountains, and deserts. Kazakhstan has an estimated 18.3 million people as of 2018[update].[17] Given its large land area, its population density is among the lowest, at less than 6 people per square kilometre (15 people per sq mi). The capital is Nur-Sultan (until 2019 Astana), where it was moved in 1997 from Almaty, the country's largest city.