There's one spot where you can stand in four US states at once

Most state borders are quiet things—a river, a fence line, a sign on a highway. At one remote spot in the desert Southwest, four of them collide at a single point, and you can crouch over it with a limb in each state at the same time.

Four Corners is the only place in the United States where the borders of four states meet: Arizona, Colorado, New Mexico, and Utah. The boundaries cross at near-perfect right angles, slicing the land into four neat quadrants and giving the site its name. A granite-and-bronze disk marks the exact junction, ringed by the seals of all four states.

The arrangement exists because these borders were drawn along lines of latitude and longitude rather than following rivers or mountains. Straight surveyed lines can, in principle, cross at a single shared corner—and here, uniquely in the country, four of them do.

The monument sits on tribal land, managed by the Navajo Nation, with the Arizona, New Mexico, and Utah portions on the Navajo reservation and the Colorado portion on the Ute Mountain Ute reservation. Surveyors first fixed the point in 1875, and modern instruments have since confirmed it is effectively where the original marker stands. Visitors line up to perform the obligatory pose: hands and feet splayed across four states, technically standing in all of them at once.