Roaming American Bison, cattle-herding cowboys, wide open plains and Glacier National Park are some of what Montana is known ...

Smithsonian American Art Museum, Gift of George D. Pratt. The Smithsonian Institution came of age in the era of Manif ...

Over the last decade, Pakistan has developed into an important source for many gem materials. A number of localities have been identified for emeralds in particular. This article reports on the ...