Quote: "The characteristics of the canyon change this morning. The river is broader, the walls more sloping and composed of black slate, and stand on edge. these nearly vertical slates are washed out in place- that is, the softer beds are washed out between the harder, which are left standing"(123).
Review: as soon as they discoverd more and learned more about the Colorado River, they started to understand this place more and started doing reserach of this river, just like what Powell. He started the trip of Colorado River, which was the river that everyone knows nothing about it.
Review: as soon as they discoverd more and learned more about the Colorado River, they started to understand this place more and started doing reserach of this river, just like what Powell. He started the trip of Colorado River, which was the river that everyone knows nothing about it.
[[image:http://parkerlab.bio.uci.edu/pictures/photography pictures/Fisher Towers reflected in Colorado River.jpg width="478" height="445" caption="external image"]]
Refletion of the Colorado River
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