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Space Force, United States

(Encyclopedia)Space Force, United States (USSF), military force that forms a separate service within the U.S. Dept. of the Air Force, est. Dec. 20, 2019, by act of Congress. The head of the Space Force is the Chief...

Shenandoah, river, United States

(Encyclopedia)Shenandoah, river: see Shenandoah valley. ...

Saco, river, United States

(Encyclopedia)Saco, river, c.105 mi (170 km) long, rising in the White Mts., N central N.H. and flowing SE through Maine to the Atlantic Ocean below Biddeford. The falls at Biddeford, site of a hydroelectric dam (o...

Sacramento, river, United States

(Encyclopedia)Sacramento, longest river of Calif., c.380 mi (610 km) long, rising near Mt. Shasta, N Calif., and flowing generally SW to Suisun Bay, an arm of San Francisco Bay, where it forms a large delta with th...

Santee, river, United States

(Encyclopedia)Santee săntēˈ [key], river, 143 mi (230 km) long, formed by the confluence of the Congaree and Wateree rivers, central S.C., and flowing SE to the Atlantic Ocean. The Santee-Wateree-Catawba system ...

Roosevelt, town, United States

(Encyclopedia)Roosevelt, uninc. residential town (1990 pop. 15,030), Nassau co., SE N.Y., on Long Island. A large retail business exists in Roosevelt, and the town has become the county's busiest economic area. ...

Rotterdam, town, United States

(Encyclopedia)Rotterdam, town (1990 pop. 21,228), Schenectady co., E N.Y.; settled c.1670, inc. 1821. It is residential.

Salmon, river, United States

(Encyclopedia)Salmon, river, c.425 mi (680 km) long, rising in many branches in the Sawtooth and the Salmon River mts., central Idaho. It flows northeast and is joined, at Salmon, by the Lemhi River, after which it...

Sandusky, river, United States

(Encyclopedia)Sandusky, river, c.120 mi (190 km) long, rising in N Ohio and flowing W through Bucyrus, then N past Tiffin to Sandusky Bay, an arm of Lake Erie. This landlocked bay, 18 mi (29 km) long, is one of the...

Calumet, region, United States

(Encyclopedia)Calumet kălˈyo͞omĕtˌ [key], industrialized region of NW Ind. and NE Ill., along the south shore of Lake Michigan. Once a great heavy industry and steel manufacturing center, the area has become l...