Rock n' Roll Marathon Arizona, USA
Save the Date: 19 January 2020
Information: Official Site
Photo from: Source
In Arizona you must visit:
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| Grand Canyon Source |
Grand Canyon National Park
Grand Canyon is the result of a distinct and ordered combination of
geologic events. The story begins almost two billion years ago with the
formation of the igneous and metamorphic rocks of the inner gorge. Above
these old rocks lie layer upon layer of sedimentary rock, each telling a
unique part of the environmental history of the Grand Canyon region.
Then, between 70 and 30 million years ago, through the action of plate tectonics, the whole region was uplifted, resulting in the high and relatively flat Colorado Plateau.
Finally, beginning just 5-6 million years ago, the Colorado River began to carve its way downward. Further erosion by tributary streams led to the canyon’s widening.
Still today these forces of nature are at work slowly deepening and widening the Grand Canyon. www.nps.gov
Then, between 70 and 30 million years ago, through the action of plate tectonics, the whole region was uplifted, resulting in the high and relatively flat Colorado Plateau.
Finally, beginning just 5-6 million years ago, the Colorado River began to carve its way downward. Further erosion by tributary streams led to the canyon’s widening.
Still today these forces of nature are at work slowly deepening and widening the Grand Canyon. www.nps.gov
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| Glen Canyon National Recreation Area Source |
Glen Canyon National Recreation Area
Glen Canyon National Recreation Area is a recreation and
conservation unit of the National Park Service that encompasses the area
around Lake Powell and lower Cataract Canyon in Utah and Arizona,
covering 1,254,429 acres of mostly desert. Wikipedia
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