Enchainment

In mountaineering and climbing, enchainment (an anglicisation of the French word enchaînement, meaning "linking") is climbing two or more mountains or climbing routes on a mountain in one outing (often over the course of a day or a series of days). 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.