Join adventurous endurance athletes in the scenic City of Rocks National Reserve and Castle Rocks State Park for an exhilarating running experience. Choose from marathon, extra, or ultra distances, each promising to test your limits against stunning granite landscapes and historic trails. You'll traverse ancient hunting grounds of the Shoshone and Bannock tribes and tread portions of the historic California Trail, discovering the engraved names of 1800s emigrants. As you navigate through the beautiful high-desert terrain, be prepared for challenging conditions. The trails, mostly crushed granite dust and sand, feature a mix of single-track, double-track jeep paths, and groomed dirt roads, with limited shade under the sun. The ultra course even includes a breathtaking loop through Castle Rocks, showcasing remarkable rock formations millions of years old.