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Fifth Biennial Scientific Conference Proceedings - 1999 Exotic Organisms in Greater Yellowstone, Native Biodiversity Under Siege
Sixth Biennial Scientific Conference Proceedings - 2001 Yellowstone Lake, Hotbed of Chaos or Reservoir of Resilience?
Did You Know? At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the park.
Last Updated: July 12, 2007 at 13:49 EST