Mahoosuc Ridge to The River Challenge

Welcome to the inaugural Mahoosuc Ridge to The River Challenge! This year's trail running race will reward 10k-ers with farms, paved and logging roads, beautiful views, forests and trails. An additional 8 mountain peaks, stunning vistas, and the soon-to-be-infamous (and possibly despised) Spruce Cliffs and Aftershock await the half-marathoners. Oh, and then there's the Maine Brew Fest and food trucks at Sunday River... you won't regret signing up for the race just for this festival! 

We will update with specific course details as our trail explorations continue. Plan on a moderately difficult 10km course, suitable for newbie racers, hikers, and seasoned runners; and a doozy of an adventure for the half-marathon. 

True to its backcountry nature, this event offers approximate distances, and may differ year-to-year. This is not your typical 10k or 13.1... put aside your plans for a PR and gear up for your new yearly challenge.

For more information, please visit:

To register, click here:


Saturday, September 14, 2019 - 9:00am to 5:00pm
Running / Trails & Hiking
Annual Event: