Expeditions and the protection of Yellowstone

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11	CHAPTER ONE “To Protect These Matchless Wonders” Add to Reading List Source URL: www.nps.gov Language: English - Date: 2007-06-25 16:13:14 Geography of the United States Greater Yellowstone Ecosystem Yellowstone National Park Norris Nathaniel P. Langford Geothermal areas of Yellowstone National park Expeditions and the protection of Yellowstone Yellowstone Wyoming Western United States