The tallest sand dune in America is in Great Sand Dunes National Monument outside of Alamosa, Colorado. This bizarre 46,000-acre landscape of 700-foot sand peaks was the creation of ocean waters and wind more than one million years ago.
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Colorado's first and oldest military post, Fort Garland was established in 1858 and commanded by the legendary frontiersman Kit Carson.
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Denver, Colorado lays claim to the invention of the cheeseburger. The trademark for the name Cheeseburger was awarded in 1935 to Louis Ballast.