Natural Bridges National Monument, 7,636 acres (3,093 hectares), SE Utah; est. 1908. Located in an area of colored cliffs and box canyons, the monument contains three huge natural sandstone br...

Bridges, Harry (Alfred Renton Bridges), 1901–90, American labor leader, b. Melbourne, Australia. Arriving (1920) as an immigrant seaman in San Francisco, he became a longshoreman and militant ...

Rainbow Bridge National Monument, 160 acres (65 hectares), S Utah; est. 1910. Rainbow Bridge, the largest natural bridge in the world, is a symmetrical, pink, sandstone arch, 309 ft (94 m) hig...

New Braunfels, city (1990 pop. 22,334), seat of Comal co., S central Tex., on the Guadalupe River; inc. 1847. Portland cement, consumer goods, crushed limestone, furniture, and leather goods a...

Denture, artificial replacement for natural teeth and surrounding tissue. Dentures are classified as partial or complete. The former are removable and maintained by clasps, or are fixed bridge...

Ammann, Othmar Hermann, 1879–1965, American civil engineer, b. Switzerland, grad. Federal Polytechnic Institute, Zürich, 1902. He came to the United States in 1904 and was naturalized in 1924....

Tallahassee, city (1990 pop. 124,773), state capital and seat of Leon co., NW Fla.; inc. 1825. Tallahassee is a wholesale trade and distribution center for the surrounding lumber, livestock, a...

Topography, description or representation of the features and configuration of land surfaces. Topographic maps use symbols and coloring, with particular attention given to the shape and elevat...

Port Charlotte, uninc. town (1990 pop. 41,535), Charlotte co., SW Fla., on Charlotte Harbor (an inlet of the Gulf of Mexico) and the Peace and Myakka rivers. It is a planned residential commun...

Urban, Joseph Maria, 1872–1933, American architect and scene designer, b. Vienna. He won distinction with his architectural work, including the bridge across the Neva at St. Petersburg, and wi...