Crossing the California and Nevada state lines, Port Arthur Road is an easy-to-moderate dirt road that is perfect for any 4x4. Cutting through the Humold-Toiyabe Nation Forest, the trail approaches the state line with an amazing rock formation that pops up out of the ground as though it were a giant marker. Even though dispersed camping is allowed in this area, there are no suitable camping locations along the trail. Dispersed camping can be found along nearby Henness Road to the west.