State of Conservation (SOC)

• Olympic National Park (1990)
  United States of America
  Year: 1990
  Threats*: Pollution of marine waters
  Document Source: CC.90/CONF.004/04
  

• Redwood National and State Parks (1994)
  United States of America
  Year: 1994
  Threats*: Ground transport infrastructure
  Document Source: WHC.94/CONF.003/06
  

• Taos Pueblo (1994)
  United States of America
  Year: 1994
  Threats*: Air transport infrastructure
  Document Source: WHC.94/CONF.003/06
  

• Taos Pueblo (1993)
  United States of America
  Year: 1993
  Threats*: Air transport infrastructure
  Document Source: WHC.93/CONF.002/14
  

• Waterton Glacier International Peace Park (2010)
  United States of America
  Year: 2010
  Threats*: Housing Invasive/alien terrestrial species Mining Temperature change
  Document Source: WHC-10/34.COM/7B.Add
  

• Waterton Glacier International Peace Park (2009)
  United States of America
  Year: 2009
  Threats*: Mining Other climate change impacts Temperature change
  Document Source: WHC-09/33.COM/7B
  

• Yellowstone National Park (2012)
  United States of America
  Year: 2012
  Threats*: Air pollution Effects arising from use of transportation infrastructure Ground transport infrastructure Impacts of tourism/visitor/recreation Input of excess energy Invasive / alien freshwater species Management systems/ management plan Mining Surface water pollution
  Document Source: WHC-12/36.COM/7B
  

• Yellowstone National Park (2010)
  United States of America
  Year: 2010
  Threats*: Air pollution Effects arising from use of transportation infrastructure Ground transport infrastructure Impacts of tourism/visitor/recreation Input of excess energy Invasive / alien freshwater species Management systems/ management plan Mining Surface water pollution
  Document Source: WHC-10/34.COM/7B
  

• Yellowstone National Park (2008)
  United States of America
  Year: 2008
  Threats*: Air pollution Effects arising from use of transportation infrastructure Ground transport infrastructure Impacts of tourism/visitor/recreation Input of excess energy Invasive / alien freshwater species Management systems/ management plan Mining Surface water pollution
  Document Source: WHC-08/32.COM/7B
  

• Yellowstone National Park (2006)
  United States of America
  Year: 2006
  Threats*: Air pollution Effects arising from use of transportation infrastructure Ground transport infrastructure Input of excess energy Invasive / alien freshwater species Mining
  Document Source: WHC-06/30.COM/7B
  

• Yellowstone National Park (2005)
  United States of America
  Year: 2005
  Threats*: Air pollution Effects arising from use of transportation infrastructure Ground transport infrastructure Input of excess energy Invasive / alien freshwater species Mining
  Document Source: WHC-05/29.COM/7B.Rev
  

• Yellowstone National Park (2004)
  United States of America
  Year: 2004
  Threats*: Effects arising from use of transportation infrastructure Ground transport infrastructure Impacts of tourism/visitor/recreation Input of excess energy Invasive / alien freshwater species Mining Surface water pollution
  Other Threats: Brucella infection threat to bison population
  Document Source: WHC-04/28.COM/15B.Add
  

• Yellowstone National Park (1989)
  United States of America
  Year: 1989
  Threats*:
  Other Threats: Fire
  Document Source: SC.89/CONF.003/02,SC.89/CONF.004/05
  

• Yellowstone National Park (1988)
  United States of America
  Year: 1988
  Threats*:
  Other Threats: Fire
  Document Source: SC.88/CONF.001/13
  

* : The threats indicated are listed in alphabetical order; their order does not constitute a classification according to the importance of their impact on the property.
Furthermore, they are presented irrespective of the type of threat faced by the property, i.e. with specific and proven imminent danger (“ascertained danger”) or with threats which could have deleterious effects on the property’s Outstanding Universal Value (“potential danger”).

** : All mission reports are not always available electronically.