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talc
(Encyclopedia)talc, mineral ranging in color from white through various shades of gray and green to the red and brown of impure specimens, translucent to opaque, and having a greasy, soapy feel. It is a hydrous sil...Little Bighorn
(Encyclopedia)Little Bighorn, river, c.90 mi (145 km) long, rising in the Bighorn Mts., N Wyo., and flowing north to join the Bighorn River in S Mont. On June 25–26, 1876, Sioux and Cheyenne warriors defeated the...monazite
(Encyclopedia)monazite mŏnˈəzīt [key], yellow to reddish-brown natural phosphate of the rare earths, mainly the cerium and lanthanum metals, usually with some thorium. Yttrium, calcium, iron, and silica are fre...Deinonychus
(Encyclopedia)Deinonychus dīˌnənīˈkəs [key] [Gr.,=terrible claw], swift bipedal carnivorous dinosaur of the early Cretaceous period, approximately 119–93 million years ago. Fossil specimens have been discov...Walsh, Thomas James
(Encyclopedia)Walsh, Thomas James wôlsh [key], 1859–1933, American political leader, b. Two Rivers, Wis. A lawyer, he was Democratic Senator from Montana from 1913 until his death. Walsh helped write the Eightee...Spokan
(Encyclopedia)Spokan or Spokane both: spōkănˈ [key], Native North Americans whose language belongs to the Salishan branch of the Algonquian-Wakashan linguistic stock (see Native American languages). In the early...Great Falls
(Encyclopedia)Great Falls, city (2020 pop. 60,442), seat of Cascade co., N central Mont., second largest city in the state, at the confluence of the Missouri and Sun ...Grinnell, George Bird
(Encyclopedia)Grinnell, George Bird grənĕlˈ [key], 1849–1938, American naturalist and student of Native American life, b. Brooklyn, N.Y., grad. Yale (B.A., 1870; Ph.D., 1880). He accompanied Custer's Black Hil...Pachycephalosaurus
(Encyclopedia)Pachycephalosaurus păkˌĭsĕfˌəlōsôrˈəs [key] [Gr., = thick-headed lizard], bipedal herbivorous dinosaur of the late Cretaceous period, approximately 68–65 million years ago. Its disting...Mullan, John
(Encyclopedia)Mullan, John, 1830–1909, American army officer and pioneer road builder, b. Norfolk, Va., grad. St John's Colllege, 1847, West Point, 1852. He was one of the chief aides of General I. I. Stevens in ...Browse by Subject
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