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Pictured Rocks National Lakeshore

(Encyclopedia)Pictured Rocks National Lakeshore: see National Parks and Monuments (table)national parks and monuments (table). ...

Pipe Spring National Monument

(Encyclopedia)Pipe Spring National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Rainbow Bridge National Monument

(Encyclopedia)Rainbow Bridge National Monument, 160 acres (65 hectares), S Utah; est. 1910. Rainbow Bridge, the largest natural bridge in the world, is a symmetrical, pink, sandstone arch, 309 ft (94 m) high, 33 ft...

Richmond National Battlefield Park

(Encyclopedia)Richmond National Battlefield Park: see Richmond, Va.; National Parks and Monuments (table)national parks and monuments (table). ...

Riding Mountain National Park

(Encyclopedia)Riding Mountain National Park, 1,148 sq mi (2,973 sq km), SW Man., Canada, W of Lake Manitoba; est. 1929. A wooded region with small glacial lakes, on the highest part of the Manitoba escarpment, it i...

Pompeys Pillar National Monument

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

Ozark National Scenic Riverways

(Encyclopedia)Ozark National Scenic Riverways, 80,786 acres (32,707 hectares), along the Current and Jacks Fork rivers, SE Mo.; authorized 1964 as the first national scenic river; est. 1972. Many springs flow into ...

Pacific Rim National Park

(Encyclopedia)Pacific Rim National Park, 60 sq mi (155 sq km), along the west coast of Vancouver Island, near Ucluelet, SE British Columbia, Canada; est. 1971. The park includes Long Beach, several islands, the his...

Pecos National Historical Park

(Encyclopedia)Pecos National Historical Park, 6,671 acres (2,702 hectares), N New Mexico; est. as a national monument 1965, designated a national historical park 1990. The park contains the remains of the Pecos pue...

Petrified Forest National Park

(Encyclopedia)Petrified Forest National Park, 93,533 acres (37,881 hectares), E Ariz.; est. as a national monument 1906, designated a national park 1962. A part of the Painted Desert, it contains the largest known ...