Wood Bison

Wood Buffalo National Park, located in northeastern Alberta and southern Northwest Territories, is the largest national park in Canada at 44,807 km (17,300 sq mi). It is also the largest national park in North America and the second largest in the world.^[1] The park was established in 1922 to protect the world's largest herd of free roaming Wood Bison, currently estimated at more than 5,000. It is the only known nesting site of whooping cranes.

• http://en.wikipedia.org/wiki/Wood Buffalo National Park