Club 4x4 Vallée de la Zorn is a four-wheel-drive association based in Steinbourg, around 35 kilometres from Strasbourg, at the foot of the Northern Vosges. With more than 40 years of history and nearly 200 members, including participants from other European countries, the club manages the Centre Tout Terrain de la Zorn, a 20-hectare off-road site designed for a range of experience levels. Its activities include open driving sessions, recreational and touring trials, off-road trips and adventure raids, as well as introductory, discovery, community and social events.

The grounds feature varied terrain and obstacles, including off-road tracks, mud sections, bridges, seesaws and rock-crawling areas. The club also has an RC Scale Crawler section and a dedicated crawler park. Access is intended for eligible four-wheel-drive vehicles, 4x4 trucks, larger 6x6 and 8x8 trucks, and certain utility quads; sporting quads are not permitted.

Opening follows a published schedule, with group bookings and private-event access available by request. Facilities include showers, toilets and bivouac space