In North America’s only National Park City, Chattanooga offers a journey defined by depth and contrast. Rooted in the Appalachian landscape, the course unfolds from the energy of downtown into ever-evolving terrain and sweeping mountain views. Each section builds in effort, perspective, and reward, bringing the River to Clouds experience to life.

Chattanooga feels familiar from the moment you arrive. On race weekend, the city opens up. Tables stretch longer, and music carries through the streets. The city is full of flavor, a richness you can feel in every corner. From smoky kitchens to sidewalk stages, there is a warmth you cannot manufacture. It is this spirit, equal parts grit and grace, that reconnects runners to their why and lets the race live on beyond the trail.

In Chattanooga, race weekend feels close in every sense of the word. Downtown streets, river paths, and mountain trailheads are woven together, drawing runners, spectators, and locals into a single rhythm. It is the community that defines it: the cheers, the recognition, the constant presence of people who show up for every step. Every mile is seen, supported, and carried forward, turning proximity into something personal.

Through UTMB Community Bibs, we have set out to achieve something extraordinary by caring for the amazing environments that host our trail events. The UTMB Community Bibs are a part of The IRONMAN Foundation, which creates positive change in By UTMB®, IRONMAN®, and Rock 'n' Roll Running Series® event communities through grant funding and volunteerism. Your donations support local community organizations and trail stewardship programs. Together, we make a positive impact on the local communities that host our events and local trails that we enjoy running on. Since 2003, over $60 million has been provided through IRONMAN and IRONMAN Foundation charitable giveback programs to more than 10,000 local, regional, national, and global nonprofit initiatives. UTMB Community Bibs can be purchased through the Registration page, and half of the registration costs go towards a local charity, chosen by the race team.