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Mesabi

(Encyclopedia)Mesabi məsäbˈē [key], range of low hills, NE Minn., once famous for its extensive iron ore deposits. The ores were found in a belt c.110 mi (180 km) long and from 1 to 3 mi (1.6–4.8 km) wide bet...

Pond, Peter

(Encyclopedia)Pond, Peter, 1740–1807, American fur trader and explorer of the Old Northwest, b. Milford, Conn. He served in the French and Indian War and in 1765 became a western trader from Detroit. He later rem...

Tobacco Nation

(Encyclopedia)Tobacco Nation or Tionontati, Native North Americans of the Iroquoian branch of the Hokan-Siouan linguistic stock (see Native American languages). In 1616, when visited by the French, they were living...

slate

(Encyclopedia)slate, fine-grained rock formed when sedimentary rocks such as shale are metamorphosed by great pressure. Slate splits into perfectly cleaved, broad thin layers; this characteristically regular and pl...

agate

(Encyclopedia)agate ăgˈĭt [key], translucent, cryptocrystalline variety of quartz and a subvariety of chalcedony. Agates are identical in chemical structure to jasper, flint, chert, petrified wood, and tiger's-e...

Ottawa, indigenous people of North America

(Encyclopedia)Ottawa ōdäˈwə [key], Native Americans whose language belongs to the Algonquian branch of the Algonquian-Wakashan linguistic stock (see Native American languages). Traditionally of the Eastern Wood...

Carver, Jonathan

(Encyclopedia)Carver, Jonathan, 1710–80, American explorer, b. Weymouth, Mass. He served in the French and Indian War and in 1766 was hired by Robert Rogers to undertake a journey to some of the Western tribes. H...

Radisson, Pierre Esprit

(Encyclopedia)Radisson, Pierre Esprit pyĕr ĕsprēˈ rädēsôNˈ [key], c.1632–1710, French explorer and fur trader in North America. He arrived in Canada in 1651. His journals, first published as the Voyages o...

Agassiz, Alexander

(Encyclopedia)Agassiz, Alexander ăgˈəsē [key], 1835–1910, American naturalist and industrialist, b. Neuchâtel, Switzerland; son of Louis Agassiz, stepson of Elizabeth Cary Agassiz. He came to the United Stat...

Canadian Shield

(Encyclopedia)Canadian Shield or Laurentian Plateau lôrĕnˈchən [key], U-shaped region of ancient rock, the nucleus of North America, stretching N from the Great Lakes to the Arctic Ocean. Covering more than hal...