You can stand in three states at once at any of the 36 tri-state points located on dry land across the United States. These spots, called tripoints, are where three state boundary lines converge at a single geographic point. The most famous version is actually a four-state point: the Four Corners Monument, where Arizona, Colorado, New Mexico, and Utah meet. But dozens of other locations let you plant your feet in three states simultaneously.
Four Corners: The Only Four-State Point
Four Corners is the only place in the United States where four states touch. It sits at 109°03′ West longitude and 37° North latitude, in the high desert of the Colorado Plateau. A brass disc embedded in a granite platform marks the exact spot, and lines radiate outward to divide the ground into four quadrants, one for each state. You can crouch down and place a hand or foot in each one.
The site is managed by the Navajo Nation, and admission is $8 per person (credit cards only). No National Park passes are accepted. Hours shift with the seasons: the monument opens at 8 a.m. year-round but closes as early as 4:45 p.m. from October through March and as late as 6:45 p.m. in summer. It’s closed on Thanksgiving, Christmas, New Year’s Day, and the day after Thanksgiving (Navajo Family Day).
Over the years, some visitors have questioned whether the marker is in the “right” spot, since GPS technology didn’t exist when the boundary was originally surveyed. The National Geodetic Survey has addressed this directly: modern GPS measurements, accurate to an inch or better, confirm the monument is exactly where it should be. The legal boundaries of all four states are defined by the marker itself, not the other way around. So yes, when you stand on the disc, you’re genuinely in four states.
Accessible Tri-State Points on Land
The U.S. has 60 tri-state points in total. Of those, 36 are on dry land and 24 fall in rivers, lakes, or other bodies of water. The land-based tripoints range from easy roadside stops to backcountry hikes, and many have physical markers you can stand on or touch. Here are some of the most notable and accessible ones.
Northeast
The Tri-States Monument (sometimes called Tri-State Rock) marks where New Jersey, New York, and Pennsylvania meet. It sits at Carpenter’s Point, at the confluence of the Delaware and Neversink rivers, and also happens to be the northernmost point in New Jersey. The granite monument is near the water’s edge in Montague Township, Sussex County. A separate “Witness Monument” is located in Port Jervis, New York, under an Interstate 84 bridge, serving as a secondary reference point. The spot is reachable without a serious hike, though the terrain near the rivers can be uneven.
Further north, tripoints exist where Connecticut, Massachusetts, and New York meet, where Massachusetts, New York, and Vermont converge, and where Massachusetts, New Hampshire, and Vermont touch. These are all on land and most have small survey markers, though not all have formal monuments.
Mid-Atlantic and Appalachian
The Maryland, Pennsylvania, and West Virginia tripoint sits at about 2,320 feet elevation along the Mason-Dixon Line. Getting there requires driving roughly 1.4 miles on increasingly rough roads (the last half-mile is stony gravel, though doable in a regular vehicle if you go slowly) and then walking about two-tenths of a mile along a gas pipeline service road. The 1910 tri-state monument is in a small clearing near a high-voltage power line. It’s a rewarding visit for boundary enthusiasts but not a casual roadside stop.
The Delaware, Maryland, and Pennsylvania tripoint is another land-based marker in the region, as is the point where Kentucky, Virginia, and West Virginia converge in the Appalachian Mountains.
Midwest and South
The OKKAMO Tri-State Marker shows where Oklahoma, Kansas, and Missouri meet. It’s located at about 1,016 feet elevation, roughly 300 feet north of Interstate 44 and about 1,000 feet east of the Downstream Casino and Resort, which is operated by the Quapaw Nation. A stone marker was originally built in 1938, but it turned out to be about 50 feet west of the actual tripoint. A corrected stand-on plaque was installed at the true location in 2004.
Other accessible Midwest and Southern tripoints include where Arkansas, Missouri, and Oklahoma meet, where Alabama, Georgia, and Tennessee converge, and where Georgia, North Carolina, and South Carolina touch. The Alabama, Florida, and Georgia tripoint lies in the western Florida Panhandle area, though the exact survey marker is in a somewhat remote spot rather than a developed site.
Western States
The West has several land-based tripoints beyond Four Corners. Idaho alone is part of four different ones: Idaho-Montana-Wyoming, Idaho-Utah-Wyoming, Idaho-Nevada-Utah, and Idaho-Nevada-Oregon. The Colorado-Utah-Wyoming and Montana-South Dakota-Wyoming tripoints are also on dry land and reachable by determined visitors, though some require long drives on unpaved roads through sparsely populated areas.
Tripoints in Water
Twenty-four tri-state points fall in rivers, lakes, or other waterways. These are legally real boundaries, but you can’t meaningfully stand in three states at once because the exact point is underwater or mid-river. Many of these occur along the Mississippi, Ohio, and Missouri rivers, where state lines follow the waterway. A few technically fall in Lake Michigan, Lake Erie, or Lake Superior. There are no physical markers at these locations, and reaching the precise coordinates would require a boat and a GPS unit rather than a pair of hiking boots.
How to Find a Tripoint Near You
The 36 land-based tripoints are spread across the country, so there’s likely one within a day’s drive of most locations in the continental U.S. The full list of accessible points spans from Connecticut-Massachusetts-Rhode Island in the northeast to California-Nevada-Oregon in the far west. Some, like the OKKAMO marker near a casino off I-44, are practically roadside attractions. Others, like the Maryland-Pennsylvania-West Virginia marker at 2,320 feet along the Mason-Dixon Line, reward a short hike with a piece of geographic history in a quiet forest clearing.
If you’re planning a visit, keep in mind that many tripoints are on private land, tribal land, or in areas without formal public access. Four Corners is the most visitor-friendly by far, with a paved parking area, vendor stalls, and a clear monument. Most others are small survey markers or stone monuments with no facilities, signage, or restrooms nearby. Checking land ownership and access routes before you go will save you a wasted trip.