583.  Layering,
Layering,  Limestone,
Limestone,  Why Here?
Why Here?  Why So “Recently”?
Why So “Recently”?  Marble Canyon,
Marble Canyon,  Distant Cavern Connection,
Distant Cavern Connection,  Perpendicular Faults,
Perpendicular Faults,  Arching,
Arching,  Inner Gorge,
Inner Gorge,  Missing Talus,
Missing Talus,  Colorado Plateau,
Colorado Plateau,  Unusual Erosion,
Unusual Erosion,  Nankoweap Canyon.  Same as item 531.
Nankoweap Canyon.  Same as item 531.
584.  Side Canyons,
Side Canyons,  Barbed Canyons,
Barbed Canyons,  Slot Canyons. Same as item 532.
Slot Canyons. Same as item 532.
585.  Forces, Energy, and Mechanisms. Same as item 567.
Forces, Energy, and Mechanisms. Same as item 567.
586.  Kaibab Plateau.  Same as item 569.
Kaibab Plateau.  Same as item 569.
587.  Missing Mesozoic Rock.  Same as item 535.
Missing Mesozoic Rock.  Same as item 535.
588.  Missing River,
Missing River,  Missing Dirt.  Same as item 534.
Missing Dirt.  Same as item 534.
No evidence has been found that the Colorado River flowed to the northwest after crossing the Kaibab Plateau.92
589.  Fossils.  Same as item 536.
Fossils.  Same as item 536.
590.  Tipped Layers below the Great Unconformity.  Same as item 537.
Tipped Layers below the Great Unconformity.  Same as item 537.
591.  Time or Intensity?  Same as item 538.
Time or Intensity?  Same as item 538.