American Bottoms 100

Ready for an exhilarating challenge that will not only test your limits but also immerse you in the historic beauty of the Mississippi riverside? Welcome to the American Bottom ultra marathon, where the road calls you to conquer either 110 miles or 55 miles through the picturesque American Bottom. As the sun rises, experience the thrill of running on levees and old backroads, all while soaking in the sites of historical landmarks like Piggott's Fort and Fort de Chartres. This flat and quick course in Columbia, Illinois is perfect for your first ultra or setting a new personal best, with ample aid stations and a welcoming atmosphere to cheer you on. Mark your calendars for a spring adventure and push your boundaries – it's time to join us and leave your mark on the American Bottom!