Lee's Fairy, AZ | where the Grand Canyon begins |
Grand Wash Cliffs, AZ | where the Grand Canyon ends |
277 miles | length of Grand Canyon |
Colorado River | place along which the Grand Canyon runs |
Grand Canyon | example of errosion, massive size amazes people, took over a billion years to form |
forces of wind and water erosion | helped create the Grand Canyon |
Scientist believe that the Grand Canyon | started forming over 1.7 billion years ago |
The earliest evidence suggests that the Native Americans | lived in the Grand Canyon 10,000 years ago |
split twig figures of animals left behind by early canyon settlers | evidence that Native Americans lived in the Grand Canyon |
Anasazi people | Native Americans who lived in the Grand Canyon |
pithouses | houses dug out of the ground |
irrigation ditches | built by Anasazi to channel water into the fields |
caves in Grand Canyon | provided Anasazi with homes |
streams in Grand Canyon | provided Anasazi with water |
Hopi people | believed to be descendants of the Anasazi |
Havasupai | inhabit (live in) the Grand Canyon today |
Captain Garcia Lopez de Cardenas | first European thought to have seen the Grand Canyon |
John Wesley Powell | explorer and scientist who sailed the entire length of the Colorado River |
zoology | the study of animals |
botany | the study of plants |
geology | the study of rocks and minerals |
Glen Canyon Dam | built to provide hydroelectric power to western United States |
When the Glen Canyon Dam closed | the ecosystem in front of and behind the dam was changed forever, including plants, animals and the land |
When the gates of the Glen Canyon Dam were opened | sediments which built up in the river pushed out of the river and helped to restore the beaches and deeper areas of water were created where fish could reproduce |