Wyoming's Open-Range Tradition and Fence Law
To understand why surveys matter before building a fence in Wyoming, you first need to understand the state's historical relationship with livestock and land. Wyoming developed as open-range cattle and sheep country, where vast unfenced tracts were the norm. Under the open-range tradition, livestock owners were responsible for keeping their animals in, not for keeping them off a neighbor's land. A landowner who did not want livestock on their property was expected to fence them out.
That tradition is still embedded in Wyoming law today under Wyoming Statutes Chapter 11-28. While the pure open-range rule has been modified in some areas through local option laws, the framework for division fences between adjacent landowners still reflects this heritage. Understanding W.S. 11-28 matters because it affects what you owe your neighbor when it comes to fences, and it shapes the disputes that arise when fences are placed without surveys.
Division Fences Under W.S. 11-28
When two adjacent landowners share a common property line, Wyoming law treats the division fence as a shared responsibility. Each owner is generally responsible for building and maintaining half of the fence along the common boundary. The specific allocation is guided by W.S. 11-28, which outlines what constitutes a lawful fence and how costs and maintenance obligations are divided.
County commissioners appoint fence viewers in each county. These officials have authority under W.S. 11-28-108 to resolve disputes between neighbors about division fence maintenance, cost sharing, and construction standards. A fence viewer can determine whether a fence meets statutory requirements and order repairs or construction. What a fence viewer cannot do is tell you where your property line is. That determination requires a licensed Professional Land Surveyor.
Why the Property Line Matters Before You Build
A division fence is supposed to run along the shared property boundary. That sounds simple, but in Wyoming's large rural landscape it rarely is. Here is what commonly goes wrong when landowners skip a survey:
- The fence is placed where the owner assumes the line to be, based on a deed description or a rough estimate from a map, rather than where the line actually lies on the ground.
- The fence encroaches on the neighbor's land, creating a legal problem that may require removal and rebuilding.
- The fence is placed on the owner's side of the actual line, sacrificing usable land for no legal reason.
- The fence follows a different alignment than what the county fence viewers would treat as the division line, creating ambiguity about maintenance obligations.
The cost of correcting a fence built in the wrong location, including potential legal fees, far exceeds the cost of a boundary survey done before the first post goes in the ground.
Old Fence Lines Are Not Legal Boundaries
One of the most common misconceptions about Wyoming ranch land is that existing fence lines represent legal property boundaries. In reality, many fence lines in Wyoming were placed by ranchers using rough estimates, visual landmarks, or informal agreements that had nothing to do with the legal PLSS section lines recorded in the land records.
Over decades, these fences may have shifted with frost heave, been rebuilt slightly off-line after damage, or simply drifted from their original positions. When a parcel changes hands and a new owner looks at an old fence and assumes it represents the property boundary, they may be accepting a boundary that is off by dozens of feet or more from the true legal line.
A Wyoming fence line only becomes a legal boundary through a formal legal process, such as a court judgment establishing boundary by acquiescence (where both parties have treated the fence as the boundary for a sufficiently long period) or adverse possession. Absent such a legal determination, the legal boundary is where the PLSS description says it is, and locating that on the ground requires a licensed PLS.
What a Boundary Survey Provides Before Fence Construction
When you hire a licensed Professional Land Surveyor before building a fence in Wyoming, you get several things that are otherwise unavailable:
- Physical monuments set at property corners that you and your neighbor can both reference
- A clear, legally defensible determination of where the boundary runs
- Documentation you can use if a dispute ever arises later
- Confidence that the fence you build is on your land and properly divides your parcel from your neighbor's
In Wyoming's large rural parcels, a PLS will research GLO survey records at the BLM, locate and verify surviving original section corners, and use GPS and total station equipment to establish corner positions with the precision required by state law. The survey record is then available to you and can be recorded with the county clerk.
When a Survey Is Especially Important in Wyoming
While any fence project benefits from a prior survey, the need is most acute in these situations:
- Rural ranch land where no licensed survey has been performed in recent decades
- Parcels described only by PLSS legal descriptions without a recorded survey plat showing actual corner positions
- Situations where a neighbor has recently had their land surveyed and you are uncertain whether your assumed boundary matches theirs
- Properties bordering federal land managed by the BLM or U.S. Forest Service, where federal survey records govern and deviations from assumed lines can be significant
- Parcels near energy development areas, where oil and gas infrastructure may have disrupted or obscured original corner monuments
Costs and Next Steps
The cost of a boundary survey in Wyoming varies with parcel size, terrain, accessibility, and how long it has been since the land was surveyed. For a residential lot in an established subdivision in Cheyenne, Casper, or Laramie, a boundary survey typically runs $700 to $1,500. For a rural ranch parcel with large acreage, complex terrain, or a sparse history of prior surveys, costs commonly start around $2,000 and rise from there.
Getting multiple quotes from licensed PLS professionals and understanding the scope of work each quote covers is a sound approach. A surveyor who has worked in the county where your land is located will have familiarity with local GLO records and any prior surveys that affect your parcel, which can make the work more efficient.
Our Wyoming surveyor directory connects you with licensed Professional Land Surveyors across the state. Finding a PLS before you schedule your fence contractor is the most reliable way to make sure the fence you build stays where you intended it.