**Peaklist** is a dedicated online platform that celebrates the diverse world of mountains through the lens of topographic prominence. Launched in 2004, the website serves as a comprehensive resource for mountaineers, researchers, and enthusiasts alike, featuring extensive lists of over 10,000 mountains worldwide. Peaklist categorizes its content into several major projects, including the **Ultras project**, which profiles 1,524 summits with a prominence of 1,500 meters, and the **California Mountain Atlas**, detailing over 4,000 peaks with a prominence of 500 feet or more. Additionally, the site provides original research, maps, and methodologies aimed at understanding mountain impressiveness and prominence.

Peaklist is not only a repository of data but also a community hub for those keen on peakbagging and mountain exploration. The website's user-friendly navigation allows visitors to easily access vital information and participate in the growing subculture dedicated to the appreciation of high terrains. With ongoing updates and contributions from a diverse array of researchers, Peaklist stands as an invaluable tool for anyone interested in the natural beauty and mathematical intricacies of the earth's summits.