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Cuyahoga
(Encyclopedia)Cuyahoga kīˌəhōˈgə [key], river, c.80 mi (130 km) long, flowing SW through Cuyahoga Falls, then N to Lake Erie, NE Ohio, forming part of Cleveland harbor. By the late 1960s, the Cuyahoga was one...fall line
(Encyclopedia)fall line, boundary between an upland region and a coastal plain across which rivers from the upland region drop to the plain as falls or rapids. A fall line is formed in an area where the rivers have...River Brethren
(Encyclopedia)River Brethren, name used to designate certain Christian bodies originating in 1770, during a revival movement among German settlers in E Pennsylvania. In the 1750s, Mennonite refugees from Switzerlan...Monongahela
(Encyclopedia)Monongahela mənŏnˌgəhēˈlə, –hāˈlə [key], river, 128 mi (206 km) long, formed at Fairmont, N W.Va., by the junction of the West Fork and Tygart rivers. It flows north, through a valley mark...Peace
(Encyclopedia)Peace, river, 945 mi (1,521 km) long, formed by the junction of the Finlay and Parsnip rivers at Williston Lake, N central British Columbia, Canada. It flows east through the Rocky Mts., then generall...Niagara Falls, waterfall, United States and Canada
(Encyclopedia)Niagara Falls, in the Niagara River, W N.Y. and S Ont., Canada; one of the most famous spectacles in North America. The falls are on the international line between the cities of Niagara Falls, N.Y., a...yew
(Encyclopedia)yew, name for evergreen trees or shrubs of the genus Taxus, somewhat similar to hemlock but bearing red berrylike fruits instead of true cones. Of somber appearance, with dark green leaves, the yew si...acid rain
(Encyclopedia)acid rain or acid deposition, form of precipitation (rain, snow, sleet, or hail) containing high levels of sulfuric or nitric acids (pH below 5.5–5.6). Produced when sulfur dioxide and various nitro...Mackenzie, William Lyon
(Encyclopedia)Mackenzie, William Lyon, 1795–1861, Canadian journalist and insurgent leader, b. Scotland; grandfather of William Lyon Mackenzie King. Emigrating to Upper Canada in 1820, he published (1824–34), f...Labor Day
(Encyclopedia)Labor Day, holiday celebrated in the United States and Canada on the first Monday in September to honor the laborer. It was inaugurated by the Knights of Labor in 1882 and made a national holiday by t...Browse by Subject
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