The Oregon Trail Gravel Grinder 2025 is the third leg of the Oregon Gravel Grinder Series; this “Grand Tour of Gravel” is a five-day event that will challenge and reward racers and adventure riders alike, not only on the epic days in the saddle but the celebration of the gravel tribe each night at camp. This unique experience offers a fully supported race-vacation experience covering approximately 350 miles and 25,000-33,000 feet of elevation gain over mixed terrain through the Cascade Mountain Range in five days and four nights.