High Quality Content by WIKIPEDIA articles! Canaan Valley is an oval, bowl-like upland valley in northeastern Tucker County, West Virginia, USA. Within it are extensive wetlands and the headwaters of the Blackwater River which spills out of the valley at Blackwater Falls. It is a well-known and partially undeveloped scenic attraction and tourist draw, associated with the Canaan Valley Resort State Park and the Blackwater Falls State Park. Canaan Valley was designated a National Natural Landmark in 1974. The National Park Service citation indicates that the Valley is "a splendid 'museum' of Pleistocene habitats ... contain(ing) ... an aggregation of these habitats seldom found in the eastern United States. It is unique as a northern boreal relict community at this latitude by virtue of its size, elevation and diversity." Since 1994, about 60% of the Valley has become the Canaan Valley National Wildlife Refuge, the nation's 500th National Wildlife Refuge.