I bought this card when I visited the monument this summer. Of course there is also a picture, showing me in 4 different states at the same time :)
"There is only one place in America where four states meet. If you lie on the marble platform, you can be in Colorado, Arizona, Utah and New Mexico - all at the same time."
Here is a bit of trivia from wikipedia: In 2009, a spokesperson for the U.S. National Geodetic Survey admitted the monument is placed 1,807 feet (551 m) east of where modern surveyors would mark the point. However, he defended the accuracy of the 1875 survey, stating surveyors "nailed it" considering the primitive tools of the day. Pointing out the achievement given the conditions, he further stated, "Their ability to replicate that exact point — what they did was phenomenal, what they did was spot on." He concluded by stating that any claims of errors in the location of the monument are irrelevant. Once a survey commissioned to establish a boundary has been accepted by the involved parties, the survey markers are legally binding, regardless of any error that is later discovered. Similar statements were issued by the Navajo Nation, defending their work in maintaining and promoting the monument. In addition, general U.S. land principles, law, and the Supreme Court have established that the location of the monument is the legal corner of the four states.
