KEYSTONE

'Keystone' may refer to:

★ Keystone (architecture), the piece at the apex of an arch or vault

★ Keystone (beer brand), a second chance beer from Coors Brewing Company

★ Keystone (cask), a wooden or plastic fitting used in ale casks.

★ Keystone (software), A parser and front-end for ISO C++

★ Keystone correction, corrects for some types of distortion in projectors

★ Keystone species, species that have a larger effect on their environment than is purely due to their abundance

★ A poetic-theological description of The Book of Mormon

★ Keystone Aircraft Corporation

★ Keystone Camera Company

★ Keystone Kapers, a classic Atari game where a police officer pursues a thief

★ Keystone Kops, a series of silent movies

★ Keystone module, a type of data connector mounted in walls and patch panels

★ Keystone Studios, movie studio

★ Keystone View Company, a US photo agency founded in 1892.

★ Keystone Switzerland, a Swiss photo agency founded in 1953, originally a subsidiary of Keystone View Company.[1]

★ Operation Keystone during World War II

★ The Keystone asterism in the constellation Hercules

★ Keystone National High School, a private correspondence school

★ Keystone (1899 automobile), a steam car from Lebanon, Pennsylvania

★ Keystone (1914 automobile), an automobile from Pittsburgh

★ Keystone School, a private K-12 school in San Antonio, TX

★ Keystone at the Crossing, a business/shopping district located in Indianapolis, Indiana

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★ The Fashion Mall at Keystone, a mall located in the Keystone shopping district

★ The Keystone effect is caused by attempting to project an image onto a surface at an angle, as with a projector sitting on a table, pointing upward at a screen. It can be corrected by some video display technologies, as with NVKeystone by Nvidia.

★ Keystone Foods, a global manufacturer of food products and custom distributor to the food industry

Contents

Places

Railroad uses

Places

★ Keystone, Colorado, a town and ski resort

★ Keystone, South Dakota, a town near Mount Rushmore

★ Keystone City, home of the comic book character the Flash

★ Keystone Resort, ski resort in Keystone, Colorado

★ Keystone State, nickname for the U.S. Commonwealth of Pennsylvania, in use by 1802

Railroad uses

★ Keystone Service (Amtrak), Amtrak's current New York-Harrisburg

★ Keystone (Amtrak), Amtrak's former New York-Pittsburgh service

★ Keystone (PRR), Pennsylvania Railroad's former New York-Washington service