American Bottoms 113

The American Bottoms 113 returns to Columbia, Illinois on March 20th, 2027, offering runners a unique ultra experience along the Mississippi River through historic sites of the American Bottom region. This road race, which has gained traction among endurance athletes looking for challenging yet scenic routes, starts at 6:00 AM sharp and extends into Sunday afternoon with its full 113-mile option or the shorter but equally captivating 56-mile route. The event is held just outside St. Louis in Columbia, Illinois, a city known for its rich history and picturesque landscapes.
Race morning in March typically sees cool temperatures around 40°F to 50°F at dawn, with moderate UV levels encouraging participants to wear sunscreen and protective clothing. Participants will encounter firm yet slightly soft trail conditions that can vary from paved roads to gravel paths along the course's route through Columbia’s historic landmarks and scenic countryside.
The American Bottoms 113 is a well-established event in its third year, drawing over two hundred runners annually who are eager to test their limits on this no-frills ultra. The race supports local veterans and first responders by offering them free entry among the early registrants. Additionally, it raises funds for community initiatives in Columbia.
The course follows parts of the American Discovery Trail and Kaskaskia-Cahokia Trail, winding through historical sites such as Piggott's Fort and Fort de Chartres. The terrain is mostly flat with a mix of paved roads and gravel paths that offer runners generous cut-off times and aid stations every few miles. For those opting for the 113-mile distance, there are eighteen hours to complete the out-and-back course from Columbia’s Bluff Road starting point.
Weather conditions during the race will likely see temperatures ranging between 40°F at dawn on Saturday morning and a high of around 65°F by early evening. The risk of precipitation is minimal in March, with clear skies being typical for this time of year. Humidity levels are moderate but manageable throughout the day as participants navigate through the historic sites.