With its top at 122 m altitude, it is one of many hill formations in the Flemish Ardennes, in the south of East-Flanders.

The upper and steepest part of the climb consists of 450 m of cobbled surface.

In Flemish media the climb is often erroneously called Oude Kruiskens – with k. The Kruisberg should not be confused with the Kluisberg, a nearby hill and forest in the neighbouring municipality of Kluisbergen.

The climb is best known from road bicycle racing, as it regularly features in the spring classics, most notably the Tour of Flanders.

[1] The Kruisberg is also regularly included in the Three Days of De Panne, E3 Harelbeke and the Tour of Flanders for Women.