Ostrava is situated at the meeting point of four rivers: the Odra, Opava, Ostravice and Lučina. Thanks to its location in a broad river basin known as the Moravian Gate, Ostrava is mostly low-lying (highest point 210 m above sea level), and has a Central European climate with typical flora and fauna. It differs from most neighbouring regions by the high concentration of industry, dense population and the geographical conditions of the Ostrava basin. The climate features hot, humid summers and relatively mild winters, with an average annual temperature of 10.2 °C (January: -1.2 °C, July: 23.5 °C) and average annual precipitation of 580 mm. Ostrava is 20.5 km across (as the crow flies) from north to south (Antošovice–Nová Bělá), and 20.1 km across from east to west (Bartovice–Krásné Pole). The total length of the city’s road network is 828 km.