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Flathead Lake

(Encyclopedia)Flathead Lake, 197 sq mi (510 sq km), 30 mi (48 km) long, NW Mont.; largest natural lake in Montana. Formed by the glacial damming of the Flathead River, which flows through it from north to south, Fl...

Little Missouri

(Encyclopedia)Little Missouri. 1 River, c.145 mi (230 km) long, rising in the Ouachita Mts., SW Ark., and flowing generally SE to join the Ouachita River N of Camden. North of Murfreesboro is Narrows Dam (1950), wh...

Rybinsk Reservoir

(Encyclopedia)Rybinsk Reservoir, artificial lake, c.2,000 sq mi (5,200 sq km), NW European Russia. It was formed in 1941 between the upper Volga River and its tributaries, the Mologa and Sheksna rivers, with the co...

Hongze

(Encyclopedia)Hongze or Hungtse both: ho͞ongˈdzŭ [key], lake, 65 mi (105 km) long, E China, on the border of Anhui and Jiangsu provs. It receives the Huai River and is connected with the Grand Canal. The Sanhe d...

Hetch Hetchy Valley

(Encyclopedia)Hetch Hetchy Valley, in Yosemite National Park, central Calif., on the Tuolumne River. It once rivaled Yosemite Valley in beauty and grandeur. O'Shaughnessy Dam (completed 1923; enl. 1938) turned the ...

Ogden, river, United States

(Encyclopedia)Ogden, river, 35 mi (56 km) long, rising in the Wasatch Range in N Utah, and flowing SW to join the Weber River at Ogden. The river has been used for irrigation for nearly a century. The Ogden–Brigh...

Marias

(Encyclopedia)Marias mərīˈəz [key], river, c.210 mi (340 km) long, rising in several branches in NW Montana near the Continental Divide and flowing SE to the Missouri River near Fort Benton. It receives the Tet...

Roanoke, river, United States

(Encyclopedia)Roanoke, river, c.410 mi (660 km) long, rising in SW Va. and flowing generally southeast across the Blue Ridge Mts. and into Albemarle Sound, NE N.C. The lower river is navigable for small craft. A co...

Sharon, city, United States

(Encyclopedia)Sharon shârˈən [key], city (1990 pop. 17,493), Mercer co., NW Pa., on the Shenango River, near the Ohio line; settled c.1800, inc. as a city 1920. An industrial city, its chief manufactures are tex...

Osage, river, United States

(Encyclopedia)Osage, river, c.360 mi (580 km) long, formed by the confluence of the Marais des Cygnes and the Little Osage rivers, W Mo. It flows NE to join the Missouri River near Jefferson City. Bagnell Dam (comp...