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Montezuma Castle National Monument

(Encyclopedia)Montezuma Castle National Monument, 858 acres (347 hectares), central Ariz.; est. 1906. Montezuma Castle, built c.1250, is a 5-story, 20-room dwelling perched high in the cavity of a cliff. It was nam...

Natural Bridges National Monument

(Encyclopedia)Natural Bridges National Monument, 7,636 acres (3,093 hectares), SE Utah; est. 1908. Located in an area of colored cliffs and box canyons, the monument contains three huge natural sandstone bridges: O...

Papahānaumokuākea Marine National Monument

(Encyclopedia)Papahānaumokuākea Marine National Monument, 582,578 sq mi (1,508,870 sq km), in the Pacific Ocean surrounding the NW Hawaiian Islands, c.270 mi (435 km) NW of Oahu; est. 2006 as Northwestern Hawaiia...

Aztec Ruins National Monument

(Encyclopedia)Aztec Ruins National Monument, 318 acres (129 hectares), NW N.Mex., near Farmington; est. 1923. Ruins of a 12th-century Pueblo town contain interesting kivas, one of which has been completely restored...

Lava Beds National Monument

(Encyclopedia)Lava Beds National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Poverty Point National Monument

(Encyclopedia)Poverty Point National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Pompeys Pillar National Monument

(Encyclopedia)Pompeys Pillar National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Agua Fria National Monument

(Encyclopedia)Agua Fria National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

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