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Green River

(Encyclopedia)Green River. 1 River, 370 mi (595 km) long, rising in central Ky. and flowing generally NW, through Mammoth Cave National Park, to the Ohio River near Evansville, Ind. Locks and dams make the Green Ri...

Dry Tortugas

(Encyclopedia)Dry Tortugas tôrto͞oˈgəz [key], island group in the Gulf of Mexico, off S Fla., 60 mi (97 km) W of Key West. Named by the Spanish explorer Ponce de León in 1513, the islands later became a pirate...

Greenbelt

(Encyclopedia)Greenbelt, city (2020 pop. 24,921), Prince Georges co., W central Md., a residential suburb of Washington, D.C.; chartered 1937. Greenbelt was planned a...

Oxon Hill

(Encyclopedia)Oxon Hill, village (1990 pop. 35,794), Prince Georges co., central Md., a suburb S of Washington, D.C. Oxon Hill was dominated by large estates until the 1950s. National Harbor, a major mixed-use deve...

Olympic Mountains

(Encyclopedia)Olympic Mountains, highest part of the Coast Ranges, on the Olympic Peninsula, NW Wash. Mt. Olympus (7,965 ft/2,427 m) is the highest point in the mountains, which are composed mainly of sedimentary r...

Los Alamos

(Encyclopedia)Los Alamos lôs ălˈəmōsˌ, lŏs [key], uninc. town (1990 pop. 11,455), seat of Los Alamos co., N central N.Mex. It is on a long mesa extending from the Jemez Mts. The U.S. government chose the sit...

West Orange

(Encyclopedia)West Orange, town (1990 pop. 39,103), Essex co., NE N.J., a residential suburb of Newark; set off from Orange 1862, inc. 1900. “Glenmont,” Thomas Edison's home in Llewellyn Park, and his laborator...

Lower Delaware National Wild and Scenic River

(Encyclopedia)Lower Delaware National Wild and Scenic River: see National Parks and Monuments (table)national parks and monuments (table). ...

President Lincoln and Soldier's Home National Monument

(Encyclopedia)President Lincoln and Soldier's Home National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

Northeast Canyons and Seamounts Marine National Monument

(Encyclopedia)Northeast Canyons and Seamounts Marine National Monument, 4,913 sq mi (12,725 sq km), NW Atlantic Ocean, 130 mi (210 km) off the coast of Cape Cod; est. 2016. The monument is divided into two areas; o...