Sjusjøen is a Norwegian skiing destination with forest and mountain terrain, (750-1000 meters above sea level) about 20 km east of the centre of Lillehammer, at . The area is located in the municipality of Ringsaker, Hedmark. In the winter Sjusjøen offers 350 km of connecting cross-country tracks. This is known to be the biggest cross country skiing terrain in the world. The mountain plateau South of Sjusjøen is Hedmarksvidda.