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Joshua Tree National Park

(Encyclopedia)Joshua Tree National Park, 1,022,703 acres (414,050 hectares), S California. Lying between the high Mojave Desert and the low Colorado Desert, this park has a unique ecosystem in which are preserved r...

Effigy Mounds National Monument

(Encyclopedia)Effigy Mounds National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

De Soto National Memorial

(Encyclopedia)De Soto National Memorial: see National Parks and Monuments (table)national parks and monuments (table). ...

Devils Tower National Monument

(Encyclopedia)Devils Tower National Monument, 1,347 acres (546 hectares), overlooking the Belle Fourche River, NE Wyo.; it was the first designated U.S. national monument (1906). Devils Tower, 865 ft (264 m) high a...

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