Come experience an exciting run-as-long-as-you-can ultra on May 9, 2026, at Kate Furbish Preserve East in Brunswick, ME, where you'll loop a scenic 4.17-mile course on Buttermilk Mountain's single and double track trails (featuring 121 ft of elevation gain). This coastal Maine event combines a laid-back backyard atmosphere with a serious endurance challenge, so pack your own food and fuel up for a full day of trail running. You'll enjoy the same beautiful loop repeatedly while pushing your limits in a fun, welcoming community vibe.