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Durant

(Encyclopedia)Durant, city (2020 pop. 18,589), seat of Bryan co., S central Okla., in the Red River valley farm area; inc. 1873. It is the commercial and processing c...

Hedmark

(Encyclopedia)Hedmark hĕdˈmärk [key], county, c.10,600 sq mi (27,500 sq km), SE Norway, bordering on Swe...

Sunnyvale

(Encyclopedia)Sunnyvale, city (1990 pop. 117,229), Santa Clara co., W Calif., near San Francisco; settled 1849, inc. 1912. A city in Silicon Valley, its many manufactures include semiconductors; machinery and instr...

Yuan

(Encyclopedia)Yuan yüän [key], river, 540 mi (869 km) long, rising in S Guizhou prov. and flowing generally NE to Donting lake, Hunan prov., SE China. Navigation above Changde is limited by rapids to small craft....

Miocene epoch

(Encyclopedia)Miocene epoch mīˈəsēn [key], fourth epoch of the Tertiary period in the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from around 24.6 to 5.1 mill...

hydrothermal vent

(Encyclopedia)hydrothermal vent, crack along a rift or ridge in the deep ocean floor that spews out water heated to high temperatures by the magma under the earth's crust. Some vents are in areas of seafloor spread...

Llewellyn, Richard

(Encyclopedia)Llewellyn, Richard lo͞oĕlˈĭn [key], 1907–83, Welsh novelist. He is best known as the author of How Green Was My Valley (1939), a story of life in the S Wales mining areas, and None but the Lonel...

Mendip Hills

(Encyclopedia)Mendip Hills, range of hills, c.25 mi (40 km) long, across N Somerset, SW England, extending SE from the vicinity of Hutton to the Frome valley. Primarily limestone, the hills have numerous caves (Woo...

Minnesota, river, United States

(Encyclopedia)Minnesota, river, 332 mi (534 km) long, rising in Big Stone Lake at the W boundary of Minnesota and flowing SE to Mankato, then NE to the Mississippi S of Minneapolis. Earlier called the St. Peter or ...

Moesia

(Encyclopedia)Moesia mēˈshə [key], ancient region of SE Europe, south of the lower Danube River. Inhabited by Thracians, it was captured by the Romans in 29 b.c. It was later organized as a Roman province, compr...