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lily of the valley

(Encyclopedia)lily of the valley, common name for either of the two species of Convallaria, spring-blooming perennials of the family Liliaceae (lily family). C. majalis, the species usually in cultivation, is nativ...

Cuyahoga Valley National Park

(Encyclopedia)Cuyahoga Valley National Park kīˌəhōˈgə [key], 32,950 acres (13,334 hectares), in the Cuyahoga River valley between Akron and Cleveland, NE Ohio; est. as a national recreation area 1974, designa...

Castle Mountains National Monument

(Encyclopedia)Castle Mountains National Monument, 20,920 acres (8,466 hectares), SE California. Surrounded on three sides by the Mojave National Preserve (see Mojave Desert), the monument contains Native American a...

Pullman National Monument

(Encyclopedia)Pullman National Monument: see Pullman (1;) National Parks and Monuments (table)national parks and monuments (table). ...

Rift Valley fever

(Encyclopedia)Rift Valley fever, acute viral disease that affects domestic livestock and can be transmitted to humans. The disease is most common in E and S Africa, but also occurs widely in sub-Saharan Africa and ...

Aniakchak National Monument and Preserve

(Encyclopedia)Aniakchak National Monument and Preserve ănēăkˈchăk [key], on the Alaska Peninsula, SW Alaska. Located in the Aleutian Range, the monument (137,176 acres/55,556 hectares) and surrounding preserve...

Gold Butte National Monument

(Encyclopedia)Gold Butte National Monument, 296,937 acres (90,506 hectares), SE Utah, est. 2016 and managed by the Bureau of Land Management. Named for a mining ghost town, the monument embraces a rugged desert lan...

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...

Sand to Snow National Monument

(Encyclopedia)Sand to Snow National Monument, 154,000 acres (62,000 hectares) in the San Bernadino Mountains, S Calif. It rises from the Sonoran Desert floor to Mount San Gorgonio (11,503 ft/3,506 m), the highest p...

Berryessa Snow Mountain National Monument

(Encyclopedia)Berryessa Snow Mountain National Monument, 330,780 acres (133,860 hectares), N Calif., est. 2015. Jointly managed by Forest Service and Bureau of Land Management, the monument extends from near sea le...