Most of Zimbabwe is rolling plateau, with over 75% of it lying between 600 and 1,500 m (2,000–5,000 ft) above sea level, and almost all of it over 300 m (1,000 ft). The area of high plateau, known as the highveld, is some 650 km (400 mi) long by 80 km (50 mi) wide, and stretches northeast to southwest at 1,200 to 1,675 m (4,000–5,500 ft). This culminates in the northeast in the Inyanga mountains, reaching the country's highest point at Mt. Inyangani, 2,592 m (8,504 ft). On either side of the highveld is the middleveld, a plateau ranging from about 600 to 1,200 m (2,000–4,000 ft) in height. Below 610 m (2,000 ft) are areas making up the lowveld, wide and grassy plains in the basins of the Zambezi and the Limpopo.
The highveld is a central ridge forming the country's watershed, with streams flowing southeast to the Limpopo and Sabi rivers and northwest into the Zambezi. Only the largest of the many rivers have an all-year-round flow of water.