Södermanland County (Södermanlands län) is a county or län on the southeast coast of Sweden. It is often shortened and pronounced as Sörmlands län. It borders the counties of Östergötland, Örebro, Västmanland, Uppsala, Stockholm and to the Baltic sea. It holds the popular camping route called "Sörmlandsleden" which is a system of trails covering a total of approximately 100 mil (1000 km) of walking paths, in Södermanland.