A Hors Catégorie or more commonly known as HC is a climb that outranks every other catagory. For example, Cat 1 climb is harder than a cat 2 climb and so forth. An HC climb is the hardest climb of all. – Basti
Beyond rank. Climbs are classified fourth, third, second, or first, according to their difficulty. A first category climb is harder than a second-category climb and so forth. Hors catégorie climbs are the most difficult of all.
