Stadsliden, park in Sweden

Stadsliden is a spruce-dominated forest of about 1.6 square kilometres in central Umeå, bordered by Berghem, Haga, Sandbacka, Mariedal and Mariehem. Its marked running and ski trails range from 1.9 to 10 km; the 10 km loop, called "SM-milen", starts at Gammliahallen and climbs Museibacken before descending steeply past Bräntberget.

The forest was protected in 1974 as a nature and recreation area, separating it from the surrounding landscape. Its central location quickly made it accessible and valuable to Umeå residents for outdoor enjoyment.

Locals call the forest Gammliaskogen after the adjacent Gammlia open-air museum. The 10 km trail is nicknamed "SM-milen" because it hosted the Swedish cross-country skiing championships in 1996, 2001 and 2014, and the O-Ringen prologue in 1997. It is often compared to the Lidingöloppet course.

Trails are surfaced with crushed stone and wide loops allow walking and running for all ages and abilities. Bräntberget, a neighboring hill, offers downhill skiing in winter and viewpoints year-round.

The 10 km trail through the western woods is nicknamed "SM-milen" and is often compared to the Lidingöloppet course; many consider it one of Sweden's most physically demanding exercise tracks. It climbs Museibacken from Gammliahallen, drops steeply and climbs again near Bräntberget, and crosses the other lighted trails on a ski bridge.