The history of the Compagnie des Guides de Chamonix is integral to that of mountaineering and the valley where it was born. For 200 years, the many challenges taken on by guides have cemented the legendary status of their organisation. Today, they are the protagonists in a changing mountain landscape. Their heritage puts them at the heart of the issue, and holds the potential solutions to the longevity and sustainability of their profession. The solid foundations of their history and strong values stand them in good stead to face the challenges of today’s changing environment.