State of Conservation (SOC)

• Niokolo-Koba National Park (1990)
  Senegal
  Year: 1990
  Threats*: Ground transport infrastructure, Illegal activities, Management systems/ management plan,
  Document Source: CC.90/CONF.003/03,CC.90/CONF.004/04
  

• Old City of Sana'a (1990)
  Yemen
  Year: 1990
  Threats*: Housing,
  Other Threats: Increasing number of dilapidated buildings
  Document Source: CC.90/CONF.004/03
  

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

• Río Plátano Biosphere Reserve (1990)
  Honduras
  Year: 1990
  Threats*: Ground transport infrastructure, Identity, social cohesion, changes in local population and community, Illegal activities,
  Document Source: CC.90/CONF.004/13
  

• Talamanca Range-La Amistad Reserves / La Amistad National Park (1990)
  Costa Rica
  Panama
  Year: 1990
  Threats*: Management systems/ management plan,
  Document Source: CC.90/CONF.004/13
  

• The Great Wall (1990)
  China
  Year: 1990
  Threats*:
  Other Threats: Partial collapse of some platforms
  Document Source: CC.90/CONF.004/03
  

• Timbuktu (1990)
  Mali
  Year: 1990
  Threats*: Wind, Water, Desertification, Legal framework, Financial resources,
  Other Threats: Vulnerability of the mosques
  Document Source: CC.90/CONF.004/02,CC.90/CONF.004/03 Add
  

• Tipasa (1990)
  Algeria
  Year: 1990
  Threats*: Housing, Major visitor accommodation and associated infrastructure, Earthquake,
  Document Source: CC.90/CONF.004/03
  

• Wood Buffalo National Park (1990)
  Canada
  Year: 1990
  Threats*: Water infrastructure, Localised utilities,
  Other Threats: Bison herd infected with either tuberculosis and/or brucellosis
  Document Source: CC.90/CONF.004/13
  

* : 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.