Enchainment

Rock climbing two or more routes in this manner are also called a "link up" in the United States.

Climbers may do an enchainment of easy routes as a way of training for a more difficult objective, but some enchainments of hard routes are a prize in their own right, a notable example being the great north faces of the Alps.

By the 1970s, the number of possible new routes in the Alps seemed to be drying up, and so alpinists looked for other challenges.

Developments in hang glider and paraglider technology, as well as advances in extreme skiing and the use of helicopters, meant that mountains could be descended much more quickly than they could by foot, making possible enchainments of long and difficult face routes.

Early practitioners of this style of climbing were predominantly French, the most notable being Jean-Marc Boivin, Christophe Profit [fr], and Jean-Christophe Lafaille.