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.