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Grand Canyon - Coggle Diagram
Grand Canyon
100 years ago
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Colorado river was dammed. 
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Let invasive trees grow
Tamarisk tree
12 tribes in/near canyon
500 Million Years ago
Cambrian Sea
Sediments from the ocean pile up
John Strong Newbery
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Grand Canyon Supergroup
More than 10,000 years ago
People find the grand canyon 10,000 years ago
The canyon also gives homes for some tribes
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4,000 years ago
Twig figures were found and dated back to them
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More Than 1 Million
60 Million Years
Colorado plateau was being created
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Water from the rockies made Colorado River
All rock layers were in place