早期的大峡谷骡子骑士 出处: "Early Grand Canyon Mule Riders." Photo courtesy of Cline Library, Northern Arizona University--Kolb Collection for "Grand Canyon Mule Trail Rides," an Arizona Local Legacy project.
早期的大峡谷骡子骑士
出处: "Early Grand Canyon Mule Riders." Photo courtesy of Cline Library, Northern Arizona University--Kolb Collection for "Grand Canyon Mule Trail Rides," an Arizona Local Legacy project.
