MammothMarch Southeast Ohio

The MammothMarch Southeast Ohio returns to Burr Oak State Park on August 1st, 2026, in Glouster, Ohio, United States. This 20-mile hike through the Buckeye State’s southeast wilderness promises an epic challenge for nature-lovers and seasoned hikers alike. The trail winds around the stunning Burr Oak Lake, offering a mix of rolling hills and farmland that make for a beautiful yet rugged weekend getaway.
Burr Oak State Park, located just 90 minutes southeast of Columbus, exudes tranquility with its quiet trails and picturesque landscape. On race day, expect to find yourself surrounded by lush greenery and open fields, the air thick with the scent of wildflowers and earth. The early morning light filters through the trees, casting dappled shadows across your path as you make your way around the lake. By midday, the sun warms the landscape, creating a perfect harmony between shaded sections and sunny stretches that keep things interesting.
For years now, MammothMarch has been more than just a race; it’s an event steeped in tradition and community spirit. Over two sold-out editions, participants have come together to explore everything Southeast Ohio offers. This year, as you tackle the 20-mile course, you’ll be joining a proud lineage of hikers who share your passion for nature and challenge.
Course & Conditions
The MammothMarch Southeast Ohio takes place on the trails of Burr Oak State Park, offering a mix of terrain that will test even the most seasoned trail runner. The route follows the perimeter of Burr Oak Lake, with distance markers every 10 miles to keep you on track. Notable features include scenic views from high points along the way and the opportunity to cross rolling hills and small streams. At key intervals, aid stations provide water and basic supplies for your journey.
Start/finish details will be at the park’s main entrance, where elevation profiles are minimal but the challenge is immense. Weather conditions on race day can vary: expect temperatures in the high 70s Fahrenheit with a humidity level of about 68%, making it feel like mid-summer heat. A gentle breeze from the southwest might keep things comfortable, though runners should be prepared for possible rain showers towards evening.