Plate 49
  • GRC0049. rafting expedition navigating Lava Falls Rapid, the Colorado River in the Grand Canyon National Park, Arizona (MR avail)
Plate 50
  • GRC0050. rafting expedition navigating Lava Falls Rapid, the Colorado River in the Grand Canyon National Park, Arizona (MR avail)
Plate 51
  • GRC1001. view of the Colorado River in the Grand Canyon National Park, Arizona
Plate 52
  • GRC1002. rafting on the Colorado River through the Grand Canyon National Park, Arizona (MR avail)
Plate 53
  • GRC1003. picnic and play in an enormous cavern in the Grand Canyon National Park, Arizona; Redwall Cavern (MR avail)
Plate 54
  • GRC1004. wildflowers along the Colorado River in the Grand Canyon National Park, Arizona
Plate 55
  • GRC1005. slot canyon Matkatamiba Canyon, in the Grand Canyon National Park, Arizona
Plate 56
  • GRC1006. waterfall, Elves Chasm, bottom of the Grand Canyon National Park, Arizona (MR avail)
Plate 57
  • GRC1007. slot canyon Matkatamiba Canyon, in the Grand Canyon National Park, Arizona
Plate 58
  • GRC1008. slot canyon Matkatamiba Canyon, in the Grand Canyon National Park, Arizona
Plate 59
  • GRC1009. horizontal waterfall, Clear Creek, bottom of the Grand Canyon National Park, Arizona
Plate 60
  • GRC1010. essentials for a rafting expedition, the Colorado River in the Grand Canyon National Park, Arizona (MR avail)