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Wood Buffalo National Park

(Encyclopedia)Wood Buffalo National Park, 17,577 sq mi (45,525 sq km), in NE Alta., Canada, extending into the Northwest Territories; est. 1922 to protect the only remaining herd of wood bison. It lies between Lake...

Canyon de Chelly National Monument

(Encyclopedia)Canyon de Chelly National Monument də shāˈ [key] [De Chelly, Sp. corruption of Navajo Tsegi = rock canyon], 83,840 acres (33,955 hectares), NE Ariz.; est. 1931. The area contains the ruins of sever...

National Labor Relations Board

(Encyclopedia)National Labor Relations Board (NLRB), independent agency of the U.S. government created under the National Labor Relations Act of 1935 (Wagner Act), and amended by the acts of 1947 (Taft-Hartley Labo...

Kovalevsky, Sonya

(Encyclopedia)Kovalevsky, Sonya or Sophie kōˌvəlĕfˈskē [key], 1850–91, Russian mathematician. She studied at the universities of Heidelberg and Berlin (under K. T. Weierstrass) and in 1874 received a Ph.D. ...

New River Gorge National River

(Encyclopedia)New River Gorge National River: see National Parks and Monuments (table)national parks and monuments (table). ...

Nez Percé National Historical Park

(Encyclopedia)Nez Percé National Historical Park: see National Parks and Monuments (table)national parks and monuments (table). ...

Nez Percé National Historic Trail

(Encyclopedia)Nez Percé National Historic Trail: see National Parks and Monuments (table)national parks and monuments (table). ...

Ninety Six National Historic Site

(Encyclopedia)Ninety Six National Historic Site: see National Parks and Monuments (table)national parks and monuments (table). ...

North Country National Scenic Trail

(Encyclopedia)North Country National Scenic Trail: see National Parks and Monuments (table)national parks and monuments (table). ...