Sources

1. A Native American Encyclopedia: History, Cultures, and Peoples, Barry Pritzker

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2. Ancient Landscapes of Western North America: A Geologic History with Paleogeographic Maps, Ronald C. Blakey & Wayne D. Ranney

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3. Atlas of a Lost World: Travels in Ice Age America, Craig Childs

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4. Handbook of North American Indians, Erna Gunther & Ann M. Renker

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5. How the Mountains Grew: A New Geological History of North America, John Dvorak

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6. Landscapes of Utah's Geologic Past (A Summary of Utah's Fascinating Geologic History), Thomas H. Morris, Kinsey G. Spiel, Preston S. Cook, & Hannah M. Bonner

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7. Roadside Geology of Colorado, Felicie Williams & Halka Chronic

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8. Roadside Geology of Utah, Felicie Williams, Lucy Chronic, & Halka Chronic

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9. Rough-Hewn Land: A Geologic Journey from California to the Rocky Mountains, Keith Heyer Meldahl

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10. The Encyclopedia of North American Indian Wars, 1607 - 1890: A Political, Social, and Military History, Barry M. Pritzker

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11. The Eternal Frontier: An Ecological History of North America and its Peoples, Tim Flannery

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12. The Historical Atlas of Native Americans: 150 maps chronicle the fascinating and tragic story of North America's Indigenous Peoples, Dr. Ian Barnes

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13. The Indian Tribes of North America, John R. Swanton

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