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Walnut Canyon National Monument

(Encyclopedia)Walnut Canyon National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Russell Cave National Monument

(Encyclopedia)Russell Cave National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Tule Lake National Monument

(Encyclopedia)Tule Lake National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Sonoran Desert National Monument

(Encyclopedia)Sonoran Desert National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Timpanogos Cave National Monument

(Encyclopedia)Timpanogos Cave National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Yucca House National Monument

(Encyclopedia)Yucca House 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...

Scotts Bluff National Monument

(Encyclopedia)Scotts Bluff National Monument: see Scottsbluff; 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). ...

Pickering, William Henry

(Encyclopedia)Pickering, William Henry, 1858–1938, American astronomer, b. Boston, grad. Massachusetts Institute of Technology (B.S., 1879). He taught at the Massachusetts Institute of Technology (1880–87) and ...