Image:Grand Canyon geologic column.jpeg
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Key
- 6 - Hermit, Coconino, Toroweap, and Kaibab
- 6d - Kaibab Limestone
- 6c - Toroweap Formation
- 6b - Coconino Sandstone
- 6a - Hermit Shale
- 5 - Supai Group
- 5d - Esplanade Formation
- 5c - Wescogame Formation
- 5b - Manakacha Formation
- 5a - Watahomigi Formation
- 4 - Temple Butte, Redwall, and Surprise Canyon
- 4c - Surprise Canyon Formation
- 4b - Redwall Limestone
- 4a - Temple Butte Limestone
- 3 - Tonto Group
- 3c - Muav Limestone
- 3b - Bright Angel Shale
- 3a - Tapeats Sandstone
- 2 - Grand Canyon Supergroup
- 1 - Vishnu Group
- 1b - Zoroaster Granite
- 1a - Vishnu Schist
Photo of a display in the Grand Canyon visitor's center. Taken and modified by Daniel Mayer.
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