State of Conservation (SOC)

Yellowstone National Park

Yellowstone National Park
  United States of America
Date of Inscription: 1978
Nomination records (Year): 1978
Category: Natural
Criteria: (vii)(viii)(ix)(x)
  • 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
Inscription on the Danger List
Year: 1995 -2003
Threats to the Site:
  • Geothermal development and other subsurface drillings,
  • Grizzli bears mortalities and habitat loss due to timber harvesting, oil and gas development, road and home building, mining,
  • Lake trout invasion is a threat to indigenous cutthroat trout and other species,
  • Bison and elk threatened due to proposals to try and eridacate disease from them,
  • Heavy metals and acid pollution from abandoned mining tailings,
  • Increased visitor use,
  • Water related concerns due to a proposed New World mine.

* : 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.