George H. N. Luhrs and Others Riding Down the Bright Angel Trail; Grand Canyon National Park, Arizona

George H. N. Luhrs and Others Riding Down the Bright Angel Trail; Grand Canyon National Park, Arizona, CP_LFPC_441. Greater Arizona Collection. https://aspace.lib.asu.edu/repositories/2/digital_objects/8562 Accessed July 30, 2026.