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poison oak

(Encyclopedia)poison oak: see poison ivy.

Royal Oak

(Encyclopedia)Royal Oak, residential city (1990 pop. 65,410), Oakland co., SE Mich., a suburb of Detroit; settled c.1820, inc. as a city 1921. There is metal forging and the manufacture of automotive and computer p...

East Ridge

(Encyclopedia)East Ridge, town (2020 pop. 22,167), Hamilton co., SE Tenn., a suburb of Chattanooga, near the Ga. border; inc. 1921. It is chiefly residential. ...

Glen Ridge

(Encyclopedia)Glen Ridge, borough (2020 pop. 7,802), Essex co., NE N.J., a residential suburb of New York City; inc. 1895. Originally part of Bloomfield Township, the...

Missionary Ridge

(Encyclopedia)Missionary Ridge: see Chattanooga campaign. ...

Park Ridge

(Encyclopedia)Park Ridge, city (1990 pop. 36,175), Cook co., NE Ill., a suburb adjacent to Chicago, on the Des Plaines River; inc. 1873. It is chiefly residential. Several national and international corporations ha...

Wheat Ridge

(Encyclopedia)Wheat Ridge, city (1990 pop. 29,419), Jefferson co., N central Colo., a suburb of Denver; inc. 1969. Chiefly residential, Wheat Ridge is the site of an annual carnation festival. ...

Blue Ridge

(Encyclopedia)Blue Ridge, eastern range of the Appalachian Mts., extending south from S Pa. to N Ga.; highest mountains in the E United States. Mt. Mitchell, 6,684 ft (2,037 m) high, is the tallest peak. Beginning ...

Salair Ridge

(Encyclopedia)Salair Ridge sələērˈ [key], range, c.200 mi (320 km) long, E Siberian Russia. Extending along the northern border of the Altai Territory, it rises to more than 2,000 ft (610 m) and forms the weste...

Ridge, Tom

(Encyclopedia)Ridge, Tom (Thomas Joseph Ridge), 1945–, U.S. politician and government official, first secretary of Homeland Security (2003–5), b. Munhall, Pa. A graduate of Harvard (1967) and the Dickinson Scho...