MAMMOTH Endurance Gravel

About this race

Race Overview Come and enjoy miles on miles of gravel roads around beautiful Wellsboro, Pennsylvania, home of the PA Grand Canyon! We have another fresh course for 2026, a few roads overlap from previous years courses and we are changing the direction of travel on some favorite roads from years prior. This route, like every year, is a BEAST! Course Details Full MAMMOTH Course: 132 miles with roughly 13,000 ft.+ of elevation gain. Loop Structure: Two separate non-overlapping loops starting and ending in downtown Wellsboro. Morning Loop: 64 miles long: Afternoon Loop: 68 miles long. Half MAMMOTH: Ride the 64-mile morning loop and finish after the morning session. New Route Information Quarter MAMMOTH: An abbreviated version at 39 miles with around 3700 ft. of climbing. Breakfast and Lunch: Included for Quarter MAMMOTH riders, as well as aid stations. Challenge Level: Not necessarily "beginner friendly" but still a great challenge. Aid Station: Local businesses provide hearty food at aid stations included in registrations. Event Policies Weather Policy: This event will happen rain or shine: no refunds or deferrals offered. Registration Insurance: Consider adding registration insurance if worried about weather. Navigation: Use a bicycle computer or phone app for the best navigation: a GPX file will be emailed to registrants. Route Marking: Marking can vary based on weather conditions before the event. Meal Options Full MAMMOTH Riders: Breakfast, Lunch, and Dinner provided (options selected during registration). Half and Quarter MAMMOTH Riders: Breakfast and Lunch included (opti…