This website provides road cyclists with extensive information about more than 750 mountain passes and other climbs in Europe. All climbs have been personally measured by bicycle, making the data highly comparable. For each climb, you will find profiles, maps, photos, GPX files, and personal descriptions. In addition, characteristics such as elevation gain and gradient are shown. The difficulty of the climbs is expressed in climb effort points (cep). This index takes into account not only the total elevation gain, but also all variations in gradient throughout the entire climb, allowing for an objective and realistic comparison. The website also includes routes with substantial elevation gain and for each climb ratings of the scenery, road character, traffic, and road surface, so that you can see how attractive it is for cycling.