November ultramarathons in Maryland, United States

Out-and-back single track course through remote, rugged forest, starting and finishing at Point Overlook in Green Ridge State Forest, western Maryland.

50 miles on the Seneca Greenway and Muddy Branch trails, with rolling forested singletrack, small stream crossings, and occasional muddy footing.

Late-autumn 50K in Rosaryville State Park: mostly singletrack through deep woods and open meadows, with a looped perimeter-trail format.

Well-established 50-mile course renowned for challenging endurance and stamina