<P> The Gateway Arch is a 630 - foot ( 192 m ) monument in St. Louis in the U.S. state of Missouri . Clad in stainless steel and built in the form of a weighted catenary arch , it is the world 's tallest arch , the tallest man - made monument in the Western Hemisphere , and Missouri 's tallest accessible building . Built as a monument to the westward expansion of the United States , and officially dedicated to `` the American people , '' it is the centerpiece of the Jefferson National Expansion Memorial and has become an internationally recognized symbol of St. Louis , as well as a popular tourist destination . </P>
<P> The Gateway Arch is a 630 - foot ( 192 m ) monument in St. Louis in the U.S. state of Missouri . Clad in stainless steel and built in the form of a weighted catenary arch , it is the world 's tallest arch , the tallest man - made monument in the Western Hemisphere , and Missouri 's tallest accessible building . Built as a monument to the westward expansion of the United States , and officially dedicated to `` the American people , '' it is the centerpiece of the Jefferson National Expansion Memorial and has become an internationally recognized symbol of St. Louis , as well as a popular tourist destination . </P>
what is the height of the st. louis arch in feet and yards
what is the height of the st. louis arch in feet and yards
630 - foot
630 - foot