Landlocked Public Land and Corner Crossing Explained

Landlocked public land is government-owned land that the public cannot legally reach because private land surrounds it. Corner crossing means stepping from one public parcel to another where their corners meet. A federal appeals court approved it for six states in 2025. In Montana, Idaho, and Oregon the question is still open.

Would you rather sell the land than sort out the access? We buy landlocked land as it is. Get My Same-Day Offer

This guide explains how public land ends up cut off, what the Wyoming court case decided, where the law stands in five western states, and the lawful routes that exist to these acres. It is general information, and it is not legal advice. Access law changes, so check with the state wildlife agency or a local attorney before you rely on any of it in the field.

If you came here because you own a private parcel with no road access, the rules are different. See our guide to landlocked property for that situation.

What landlocked public land is

Landlocked public land is federal or state land with no public road, trail, or public easement leading to it. The land belongs to the public. You may hunt, hike, or camp on it under the same rules as any other public parcel. The trouble is getting there, because every route crosses private land, and crossing private land without permission is trespass.

Much of it traces back to the 1800s. Congress granted railroads every other square-mile section along their routes and kept the sections in between, a history the U.S. Supreme Court recounts in Leo Sheep Co. v. United States. The result is a checkerboard: private squares and public squares alternating for miles. A public square in the middle of that pattern touches other public squares only at its four corners.

Two reports from the mapping company onX and the Theodore Roosevelt Conservation Partnership (TRCP) measured the problem:

• Their 2018 study found 9.52 million acres of federal public land in 13 western states that are entirely surrounded by private land.
• A 2022 onX report counted 8.3 million acres of "corner-locked" federal and state land in 11 western states, tied to 27,120 corners. Corner-locked land can be reached on foot only by crossing a corner.

Landlocked BLM land makes up a large share of these acres, because the Bureau of Land Management holds most of the leftover checkerboard sections. The 2018 study found the BLM manages 93.2 percent of the landlocked acres. State trust land and some national forest parcels are cut off the same way.

What corner crossing is

Corner crossing is stepping diagonally from one public parcel to another at the single point where four parcels meet. Two of those parcels are public. The other two are private. The person crossing never puts a foot on the private ground. For a moment, though, part of their body passes through the air above the two private corners.

That brief pass through the air is the whole dispute. Landowners have argued that owning land includes the low airspace above it, so crossing the corner is trespass even with no footprint. Hunters and access groups have argued that the public has a right to reach its own land, and that blocking a corner turns public land into a private preserve.

For decades, no court had settled the question. Wardens and sheriffs in different counties treated it differently. Many hunters avoided corners entirely. A case from Wyoming changed that for part of the West.

The Wyoming corner crossing case and its current status

The case is Iron Bar Holdings, LLC v. Cape. In 2020 and 2021, a group of hunters from Missouri crossed corners on a checkerboarded ranch in Wyoming to hunt elk on the public sections. In 2021 they carried a steel A-frame ladder and climbed over the corner so they would not touch the ranch's land or its signposts. These facts come from the Tenth Circuit's 2025 opinion.

A county prosecutor charged the hunters with criminal trespass, and a jury acquitted them. The ranch owner, Iron Bar Holdings, then filed a civil trespass lawsuit. Here is how the corner crossing lawsuit moved through the courts:

• 2023, federal district court in Wyoming. In an order dated May 26, 2023, the judge granted the hunters summary judgment on the corner crossing claims. The decision is reported at 674 F. Supp. 3d 1059.
• March 18, 2025, Tenth Circuit. The appeals court affirmed in a published opinion, No. 23-8043, reported at 131 F.4th 1153.
• October 20, 2025, U.S. Supreme Court. The Court denied Iron Bar's petition for review. The docket for No. 25-64 shows the entry "Petition DENIED" and nothing after it.

What the Tenth Circuit decided

The court relied on an 1885 federal law, the Unlawful Inclosures Act, 43 U.S.C. 1061. That law bars anyone without a valid claim from enclosing public land or asserting exclusive use of it. The court held that a barrier does not have to be a fence, noting that section 1063 of the Act forbids blocking passage over public land by "fencing or inclosing." Using a trespass claim to shut the public out of checkerboard public land has the same effect as fencing it, and federal law overrides state trespass law to that extent.

The ruling has limits. The hunters never touched the private surface. The decision does not allow walking across private land, driving across it, or damaging signs or fences. It concerns reaching federal public land for a lawful purpose.

Wyoming lawmakers also considered a bill in 2026 to write corner crossing into state law. The Wyoming Legislature's record for House Bill 19 shows it passed the House and then failed in the Senate on March 2, 2026, by a vote of 4 to 27. The federal ruling still applies.

Is corner crossing legal by state

The answer depends on which federal appeals circuit your state sits in. A circuit court ruling binds only the states inside that circuit. Under 28 U.S.C. 41, Wyoming and Colorado are in the Tenth Circuit. Montana, Idaho, and Oregon are in the Ninth Circuit, and the Ninth Circuit has not ruled on corner crossing. Courts there may read the Wyoming decision and find it persuasive, but they do not have to follow it.

Wyoming

Wyoming is where the case arose, and the ruling applies in full. The onX corner-locked report counts about 2.44 million corner-locked acres in the state, more than any other.

Colorado

Colorado is bound by the Tenth Circuit decision. The ruling rests on the Unlawful Inclosures Act, which protects "public lands of the United States." The case involved federal sections, and the statute does not mention state-owned land, so check with Colorado Parks and Wildlife before crossing a corner between state parcels. We searched the Colorado Attorney General's website on November 14, 2026, and found no published opinion on corner crossing. Treat state land corners with caution, and ask Colorado Parks and Wildlife before you cross one.

Montana

Montana corner crossing law is in dispute. In a bulletin dated November 3, 2025, the director of Montana Fish, Wildlife and Parks said that "corner crossing remains unlawful in Montana." On May 14, 2026, Backcountry Hunters and Anglers and Public Land and Waters Access sued the agency in Lewis and Clark County District Court. Their complaint says the director repeated that position in an internal memo on January 21, 2026, and it asks the court to set the memo aside. As of November 14, 2026, we found no published court order in that case and no agency statement about it on the Montana Fish, Wildlife and Parks news page. Until a Montana court decides, a person who crosses a corner there risks a trespass citation. The onX report counts about 871,000 corner-locked acres in Montana.

Idaho

We found no Idaho statute or court decision that addresses corner crossing by name. The general trespass rules apply. Idaho Code 36-1603 bars entering another person's real property to hunt, fish, or trap in violation of the criminal trespass law, Idaho Code 18-7008. That law defines "enter" as "going upon or over real property." We found no decision applying those words to a step across a corner, and the Tenth Circuit ruling does not bind Idaho courts. The onX report counts about 57,000 corner-locked acres in Idaho.

Oregon

Oregon lawmakers introduced Senate Bill 1545 in the 2026 session. It would have removed lawful corner crossing from the state's criminal trespass rules. The Oregon Legislature's record shows the bill stayed in the Senate Committee on Judiciary and did not become law.

Legal ways to reach landlocked public land

Corner crossing gets the headlines, but most lawful access to landlocked public land comes by quieter routes. These exist in every state.

• Landowner permission. A landowner can allow the public to cross for a day, a season, or longer. Without that permission, crossing private land is trespass.
• Recorded public easements and public roads. Federal and state agencies sometimes buy access easements across private land. Under the Dingell Act, the BLM also keeps a priority access list of parcels of 640 acres or more with little or no public access, and it updates the list every two years. A road that looks private on the ground may be a public county road on paper, and the reverse is also true.
• State access programs. State wildlife agencies pay or assist private landowners who open their land to the public. Montana runs Block Management. Wyoming runs Access Yes, which includes walk-in hunting and fishing areas and hunter management areas. Idaho Fish and Game runs its own Access Yes program, which pays willing landowners for access to private land or through it to public land, and Colorado Parks and Wildlife runs the Walk-in Access Program. Some enrolled properties also give a route through to public land behind them. Each property has its own rules and dates.
• Public waterways. A river or lake that the public may lawfully use can reach public land along its banks. Stream access rules differ a great deal from state to state, including who owns the streambed and whether a boater may step out of the boat.
• Connected public land. Some parcels that look cut off on a road map join other public land along a full boundary line. Those parcels are reachable on foot without any corner at all.

The government does not have a built-in right of way. In Leo Sheep Co. v. United States, 440 U.S. 668 (1979), the U.S. Supreme Court held that the federal government did not keep an implied easement to build a road across the private checkerboard sections it granted to the railroads. Public access by road has to be bought, donated, or already on record.

Private land next to public land: why it sells

The same checkerboard that locks up public land also shapes the value of the private squares inside it. A private parcel that borders BLM or national forest land has a neighbor that will never build a subdivision. For hunters and people who want quiet, that is the main draw.

It cuts both ways. Many private parcels in checkerboard country have no road of their own. The owner holds a deed and a tax bill but no legal way to drive in. The corner crossing ruling does not fix that. It deals with the public reaching public land on foot. It does not grant a driveway, a utility line, or a recorded easement to a private lot. Legal access to landlocked land for a private parcel is a separate matter under state law.

Buyers of these parcels tend to fall into three groups:

• The neighboring landowner, who can use the land without needing new access.
• Recreation buyers who value the public land next door and accept walk-in access.
• Land buyers who are willing to take on the access problem themselves.

If you inherited a section like this, or bought one at a tax sale and then learned there is no road, you do not have to solve the access question before you sell. You can ask us for a no-obligation cash offer on the parcel as it is. There is no cost to ask and no pressure to accept.

Common questions

This is general information, not legal advice. Laws vary by state. Talk to a real estate attorney about your parcel.