Grand Canyon NPS:
Grand Canyon National Park: Coconino Sandstone 0575
Grand Canyon NPS:
Grand Canyon National Park: Hermit Trail: Fossil Footprints 3656
Grand Canyon NPS:
Grand Canyon National Park: Hermit Trail: Fossil Footprints 3665
Grand Canyon NPS:
Grand Canyon National Park: Hermit Trail: Fossil Exhibit 3655
Grand Canyon NPS:
Grand Canyon National Park: Hermit Trail Cobblestone Paving 3747
Grand Canyon NPS:
Grand Canyon National Park: Coconino Sandstone 0766
Grand Canyon NPS:
Grand Canyon National Park: Coconino Sandstone 0768
Grand Canyon NPS:
Grand Canyon National Park: Coconino Sandstone 0768 crop
Grand Canyon NPS:
Grand Canyon National Park: Coconino Sandstone 0773
Grand Canyon NPS:
Grand Canyon National Park- Coconino from Bright Angel Trail_0470
Grand Canyon NPS:
Grand Canyon National Park-Wall of Coconino Sandstone_0597
Grand Canyon NPS:
Grand Canyon National Park, Coconino Sandstone_0362