The Corner Where the Board Opens
THE CORNER WHERE THE BOARD OPENS
Union Pacific, a Landmark Wyoming Case, and the Curious Geometry Behind Beyond the Map’s Edge
That absurd little maneuver would eventually produce one of the most consequential public-land decisions in the modern American West. The case would reach the United States Court of Appeals for the Tenth Circuit, force federal judges to revisit laws written in the age of cattle barons, and determine whether a human being could legally make a diagonal move across a point. When the appellate court finally answered that question, it did so on March 18, 2025.
Nine days later, Justin Posey launched Beyond the Map’s Edge.
That is where this story becomes interesting. It is not, however, where it begins.
The Board Congress Built
To understand why four grown men carried an A-frame ladder into the Wyoming backcountry, it helps to pull the camera several thousand feet into the air. From that altitude, parts of southern Wyoming stop looking like ordinary land and start looking like a game board.
In the nineteenth century, Congress was trying to solve an enormous financing problem. The country wanted a transcontinental railroad, but building one across the American West required staggering amounts of capital. Rather than simply fund the entire project directly, Congress devised a subsidy based on something the federal government possessed in abundance: land.
The country surrounding the proposed railroad was divided through the Public Land Survey System into six-mile-square townships and then into thirty-six sections, each nominally one square mile, or about 640 acres. Within the railroad grant corridor, qualifying odd-numbered sections were granted to railroad companies while alternating even-numbered sections remained federal. The grant corridor was eventually extended twenty miles to either side of the railroad.
The result was intentional and visually unmistakable: private, public, private, public, repeated across immense stretches of the West. The railroad could sell its granted sections to raise capital, while Congress expected the new transportation corridor to increase the value of the federal sections it retained. In theory, the arrangement was elegant. By giving away alternating land, the government helped finance the railroad while preserving a substantial federal stake in the value the railroad itself would create.
As a financing device, the scheme worked well enough to help build the transcontinental railroad. As a system of land access, it left behind a remarkably complicated legacy. Congress appears to have assumed that settlement, commerce, and future road building would eventually stitch the interlocking sections together. In many places that happened.
Across the open ranges of Wyoming, it often did not.
The checkerboard remained.
The Impossible Step
The problem becomes clearest where four sections meet. Imagine one public section diagonally opposite another, with private land occupying the other two squares. The public parcels touch, but they share no line. Their entire connection is a single cadastral point.
A person can therefore stand on public land only inches away from another piece of public land while having no conventional public corridor between them. To move from one to the other, the traveler must step diagonally across the common corner. The feet can remain entirely on public ground, but unless the traveler possesses the dimensions of a mathematical abstraction, part of the body briefly passes through the immediate airspace associated with the neighboring private parcels.
That produced a property-law question that sounds almost fictional: can someone trespass without ever stepping on private ground?
The Tenth Circuit recognized how strange the geometry was and explained it through the language of a board game. Think of a checker piece making a diagonal move. If moving from one public square to the next necessarily requires passing momentarily between the adjoining private squares, and the private owner can prohibit even that movement, then the public piece can effectively be trapped on the board.
It is worth remembering that image, because the checkerboard does not remain confined to the courtroom.
Elk Mountain
The dispute eventually centered on Elk Mountain in Carbon County, Wyoming, where Iron Bar Holdings controlled a ranch spanning roughly fifty square miles. Interspersed among those private holdings were numerous federal and state public parcels. Many were effectively surrounded except at the corners where public sections touched one another diagonally.
In 2020, three Missouri hunters—Bradley Cape, Zachary Smith, and Phillip Yeomans—approached Elk Mountain from public Bureau of Land Management land. They used onX Hunt, the modern mapping application familiar to hunters throughout the West, to distinguish public and private ownership and navigate toward the section corners.
Eventually they reached something far more authoritative than the colored lines on a phone screen: the government survey monuments marking the cadastral corners themselves.
Then they stepped diagonally.
They went from public land to public land. Their feet did not touch Iron Bar’s surface, although their bodies briefly passed through the neighboring airspace. When they returned the following year with John Slowensky, they went even further in their effort to avoid contact. They brought an A-frame ladder and used it to pass over the common corner without touching the nearby private improvements.
The scene bordered on absurdity. These men were not using a ladder to overcome a private fence so they could enter somebody’s property. They were using a ladder to avoid touching the private property while moving between two parcels belonging to the public.
The dispute nevertheless escalated. The hunters were prosecuted criminally for trespass and acquitted by a Wyoming jury. Iron Bar then pursued a civil case, contending in part that recognition of corner crossing would substantially reduce the value and exclusivity of its ranch.
A movement measured in inches had become a battle involving millions of dollars and thousands of acres.
A Law From the Age of Cattle Barons
The hunters’ strongest legal protection came not from some modern recreation statute but from a federal law passed in 1885.
During the nineteenth century, large ranching interests discovered that carefully placed fences and strategic control of private parcels could give them practical command over enormous areas of federal range. A rancher did not necessarily need to own every acre. Control the water, the road, or the right private sections, and the public land beyond them could become functionally inaccessible.
Congress responded with the Unlawful Inclosures Act. Its importance extended beyond literal fences. The deeper principle was that a private landowner could not manipulate otherwise legitimate property rights in a way that effectively appropriated or enclosed federal public land.
That principle eventually collided with the railroad checkerboard on Elk Mountain.
In May 2023, the federal district court in Wyoming ruled in favor of the hunters on the corner-crossing claims. Iron Bar appealed. Nearly two years later, on March 18, 2025, the Tenth Circuit affirmed the central result: under the circumstances presented, the hunters could corner-cross so long as they did not physically touch Iron Bar’s land.
The legal doorway was almost infinitely narrow.
But it existed.
Nine Days
At first, March 18, 2025 was simply the date of an important western land-access decision.
Then another date caught my attention.
March 27, 2025.
Nine days after the Tenth Circuit issued the corner-crossing decision, Netflix released Gold & Greed: The Hunt for Fenn’s Treasure, Justin Posey’s Beyond the Map’s Edge entered the public arena, and a new treasure hunt began.
The proximity is striking, but it is important not to make the coincidence carry more weight than the evidence allows. Posey did not see the March 18 appellate ruling and then suddenly arrange a major Netflix-linked launch nine days later. The March 27 release date had already been publicized before the appellate decision appeared. Whatever significance the nine-day interval might possess, it cannot reasonably be treated as evidence that the court opinion caused the launch date.
Once that possibility is removed, however, a more interesting chronology emerges.
Posey has said that he began deliberate planning for his treasure hunt around the middle of 2022 and physically hid the treasure in 2023. The federal district court issued its major corner-crossing ruling in May of that same year. We do not know the dates of Posey’s hiding journeys, so we cannot say whether the district-court ruling came before or after the treasure was actually placed. What we can say is that the Iron Bar litigation was unfolding during the same period in which Posey was designing and executing his hunt.
By November 17, 2023, Posey says the legal documents associated with the treasure had been signed, notarized, and tied through a cryptographic hash to its hiding location, effectively fixing the location in place. Two years later, the legal story and the treasure-hunt story converged again: the appellate ruling arrived on March 18, followed nine days later by the public launch of Beyond the Map’s Edge.
Coincidence remains a perfectly adequate explanation. Yet the overlap was interesting enough to make me return to Posey’s memoir.
That is when the chronology began to look less like the most interesting part of the story.
The Railroad Family
Justin Posey grew up in a railroad household. His father drove trains for Southern Pacific, handling several-thousand-ton machines as part of the mechanical world that surrounded Posey’s childhood. His mother became one of Southern Pacific’s pioneering female locomotive engineers. Later, following Southern Pacific’s merger into Union Pacific, Posey describes her operating within the Union Pacific system.
It would be inaccurate to flatten the family history into the simple statement that both parents were always “Union Pacific engineers.” They were Southern Pacific railroaders whose professional world became part of Union Pacific after the 1996 merger.
More importantly, the memoir makes clear that railroading was not some incidental corporate logo passing through Posey’s life. The railroad supplied the machinery, terminology, schedules, stories, and danger of his childhood world.
Then one sentence in The Midnight Menace stopped me.
Describing his mother being ordered into a siding so another train could pass, Posey characterizes the maneuver as a “routine chess move in Union Pacific’s endless game.”
Union Pacific. Chess. Movement governed by rules. Now return to the federal court. The judges were dealing with land created by nineteenth-century railroad grants. They described the ownership as a checkerboard and explained the legal question through the movement of a piece across that board. One metaphor proves nothing. But another part of Posey’s memoir makes the parallel considerably more interesting.
Not Just a Pawn
As a child, Posey participated in a school fundraiser built around a machine in which currency swirled through the air. Successful students were allowed inside for a brief period and could grab as much money as they managed to catch. Eventually another student tried to bring a net, prompting the organizers to prohibit handheld nets, sticky devices, gloves, and similar aids.
Most children would have understood the new rule to mean that devices were forbidden.
Posey focused on a single word: handheld.
In his telling, that distinction transformed the rule. The prohibition was no longer simply a wall. It was a puzzle whose language might contain an opening. He spent months experimenting with clothing that could collect the flying money without technically becoming a handheld device. The eventual solution obeyed the literal rule while defeating the assumption everyone else attached to it.
The importance of the story is not the money. It is the philosophy Posey says emerged from it. Rules, in his worldview, can be studied. Their exact language matters. What appears to be a prohibition may instead contain a lawful route that becomes visible only to someone who reads more precisely.
That idea continues into another childhood story in which Posey explicitly describes loopholes as an awakening. A person realizes, he writes, that he is not merely a pawn. He might instead be a knight or bishop capable of a different move on the “chessboard of life.”
Placed beside the Union Pacific passage, the imagery begins to form a pattern. Union Pacific itself becomes an “endless game.” Life becomes a chessboard. The successful person recognizes that he is not constrained to the obvious movement of the pawn.
And on Elk Mountain, the entire legal controversy ultimately turned on whether people standing on a Union Pacific-created checkerboard could make an unconventional diagonal move without violating the boundary.
The hunters did not prevail because they ignored the rules.
They prevailed because the rules, read more carefully, permitted a move that conventional assumptions had treated as impossible.
The Legal Way
The same fascination with lawful access reaches much further back in Posey’s life.
His childhood obsession with Victorio Peak was not simply about buried gold. It was also about the maddening fact that the suspected treasure lay inside White Sands Missile Range. Posey describes the Noss family’s history there as a labyrinthine legal struggle, and his own childhood thinking repeatedly returned to the problem of access.
Then a cousin told him about the civilian oryx hunts conducted on the missile range. Posey remembers exactly what caught his attention: the words “legal way” and “private citizens.”
That passage may be more significant to this inquiry than any of the chess imagery because it establishes something concrete about Posey’s treasure-hunting psychology. He was fascinated by the distinction between a place being physically reachable and a place being lawfully reachable.
The problem was never merely, Can I get there?
It was, Is there a legal way for me to get there?
That is almost exactly the question that eventually defined Elk Mountain.
Legally Accessible
Posey uses the same distinction repeatedly when describing his own treasure hunt.
His formal language states that the hiding location could be legally accessed when the property was abandoned while warning that access rights and land status can change. Later, he sharpened the point considerably. Areas that remain legally accessible can still qualify even if road closures, seasonal restrictions, or maintenance detours make reaching them inconvenient. His emphasis was not on convenient access but on the legal accessibility of the final location. If a person can legally reach the spot, he said, it remains a valid hunt location.
That scene is unusually well suited to checkerboard country. A location may be awkward to reach. The obvious road may fail. A direct route may be blocked. None of that necessarily makes the destination inaccessible if another lawful pedestrian route exists.
Posey eventually gave hunters a practical method for evaluating exactly that kind of problem. He said the hunt items are on publicly accessible land rather than private property and advised searchers to use onX or Gaia to examine surrounding property rights. If a candidate area is not publicly accessible, he advised, cross it off.
That advice becomes particularly interesting beside the Elk Mountain story because the corner-crossing hunters themselves used onX to separate public from private ownership and navigate toward the legal survey corners. The application does not create a right of access. It makes an invisible property system visible enough to reason about.
The process in both cases is essentially the same: identify the land, examine the boundary, determine the ownership, and then ask what route the law actually permits.
Maps That Become Invitations
Near the end of the memoir, immediately before presenting the treasure poem, Posey describes seekers who look at maps and see “not boundaries, but invitations.”
Read casually, the sentence is motivational language about exploration. Read after studying railroad checkerboards, it takes on a peculiar resonance.
An ownership map appears at first to be a map of prohibitions. Public. Private. Public. Private. Go. Stop. Go. Stop. Yet at the common corner, the boundary contains another fact: public land touches public land. The apparent barrier and the potential route occupy exactly the same point.
This does not require disregarding private property. In fact, the corner-crossing theory depends upon respecting it with almost ridiculous precision. Posey himself has rejected the idea that thinking beyond boundaries means breaking the law. Asked whether a successful treasure hunter needs to find a way around apparent limitations, he warned against lawbreaking while still saying that thinking outside the box is valuable.
That may be the most concise description of the Elk Mountain solution available. Think outside the box. Stay inside the law.
Through the Looking-Glass
Only after all of this does the Alice imagery become useful.
The relevant book is not really Alice’s Adventures in Wonderland but its sequel, Through the Looking-Glass. Alice climbs to a vantage point and sees the countryside divided by straight brooks and hedges into regular squares. Eventually she realizes that she is looking across a giant chessboard.
She is not simply wandering through that landscape. She occupies the role of a pawn. Her route through the country is governed by the permitted movement of a chess piece, and the structure of the story turns geography itself into a system of rules.
There is even a railway movement embedded in Carroll’s chessboard journey.
None of this establishes a historical connection between Carroll, Union Pacific, or Posey. Treating the resemblance as proof would weaken the argument. Its usefulness lies elsewhere. Carroll provides a literary model for the exact intellectual problem presented by the Wyoming checkerboard: a landscape cannot be understood solely by looking at its physical shape. One must understand the rules governing movement across it.
That same insight appears independently in three places. Carroll turns countryside into chess. Posey describes life as a chessboard and Union Pacific as a chess game. The Tenth Circuit describes railroad-grant property as a board on which the legality of a diagonal move determines whether the public piece can proceed. The overlap is thematic, not evidentiary, but it is powerful.
The Mosaic Pavement
Freemasonry supplies another visual language for the same landscape. Many lodge rooms contain the traditional Mosaic Pavement, an alternating field of dark and light squares representing opposed conditions within a single ordered space.
The immediate resemblance to the railroad checkerboard is obvious, but the more interesting parallel is conceptual. The dark and light tiles are different, yet they form one floor. The Union Pacific checkerboard presents almost the inverse condition. The mountain is physically continuous, snow, water, wildlife, and geology ignore cadastral survey lines, while human law divides that continuous world into alternating legal conditions.
Public and private. Permitted and forbidden. One landscape, two statuses.
The Masonic imagery becomes still more useful at the corner. In traditional instruction, the northeast corner is associated with beginnings, with the placement of a first stone and the transition from darkness toward light. A corner need not signify merely the point at which two lines terminate. Symbolically, it can be where construction begins.
That reversal mirrors what happened in Wyoming. For decades the common corner appeared to mark the end of accessible public land. Under the logic recognized in Iron Bar, the same point can function as the beginning of access to the next public parcel.
The barrier becomes a doorway.
For a hunt titled Beyond the Map’s Edge, the imagery is difficult to resist. But imagery remains imagery. The theory still has to survive the evidence that cuts against it.
Not the Railroad, but the Landscape It Created
Union Pacific’s most enduring mark on this part of Wyoming is not necessarily the steel rail itself. The railroad grant created a geometry extending miles beyond the tracks: alternating land ownership, section corners, isolated public parcels, and access problems that can be understood only by reading the cadastral map correctly.
The more defensible hypothesis is therefore not that the treasure is associated with a railroad structure.
It is that a railroad-created landscape may deserve examination.
Likewise, “legal access” need not mean a convenient parking lot and clearly marked trail. It might describe a place whose accessibility becomes apparent only after the searcher understands the ownership geometry. Such a location could remain fully consistent with Posey’s public statements: the treasure could be on public land, require no private permission, involve no trespass, and still demand that the solver think carefully about how the land can lawfully be reached.
That is considerably narrower than claiming the treasure lies somewhere in the Union Pacific checkerboard. It is also testable.
A compelling candidate would have to satisfy more than this historical and thematic pattern. The poem would need to lead there naturally. Posey’s access conditions would need to fit. The ownership pattern would need to be genuinely derived from the railroad grant rather than merely nearby. The place would also need to possess the personal significance Posey repeatedly says matters. Ideally, independent material from the memoir, the Netflix series, and the checkpoint would begin converging on the same geography.
If those things do not happen, the checkerboard remains an interesting historical parallel. If they do, the coincidence becomes harder to ignore.
Back at the Corner
Return one final time to Elk Mountain.
A person stands above a survey monument. Two surrounding sections are private and two are public. The OnX map shows different colors, while the mountain itself displays no boundary at all. For generations the geometry seemed to create a dead end.
Then four hunters asked a more precise question. Not whether they could ignore the boundary. Not whether private property should cease to exist. Not whether convenience entitled them to cross somebody else’s ranch. They asked what the boundary itself actually permitted.
The answer required an 1885 federal law, a Wyoming criminal trial, a multimillion-dollar civil lawsuit, a federal district court, and finally the Tenth Circuit. The legal route turned out to be almost infinitely narrow, yet wide enough for one carefully executed idea: public to public, corner to corner, without physically touching the private ground.
Nine days after the appellate court confirmed that principle, Beyond the Map’s Edge entered the world.
Perhaps that timing is merely curious. Perhaps Posey’s railroad family is simply biography. Perhaps describing Union Pacific as a chess game is only a metaphor. Perhaps the memoir’s pawns and bishops are nothing more than colorful storytelling. Perhaps his childhood fixation on finding a “legal way” into inaccessible territory is unrelated. Perhaps the repeated emphasis on legal accessibility, onX ownership maps, loopholes, boundaries, and unconventional but lawful movement means nothing to the solve.
Any one of those connections can be dismissed easily. The interesting question is what happens when they begin to accumulate.
Lewis Carroll placed Alice on a chessboard and made her journey depend upon understanding how her piece was allowed to move. Masonic symbolism placed the initiate upon a checkered pavement and transformed a corner from a termination into a place of beginning. Congress laid an actual checkerboard across Wyoming. Union Pacific became part of Posey’s family history. And a federal court eventually decided that one of the great apparent dead ends of western geography contained a move all along.
Not through the private square. Not by breaking the rules. Not by pretending the boundary was not there. By understanding the boundary precisely enough to see the opening hidden within it.
That may ultimately have nothing to do with Beyond the Map’s Edge.
But if the goal is to understand the mind of the person who designed the hunt, I would not cross this one off yet. Sometimes the most interesting thing on a map is not what lies beyond the boundary.
Sometimes it is the door hidden inside the boundary itself.
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