Open Range Laws in Oregon: What Livestock Owners and Landowners Need to Know
July 29, 2026
If you drive through rural Eastern Oregon and spot cattle grazing along the roadside, you are not witnessing a fence failure — you may be looking at open range in action. Oregon is one of several western states that still recognizes the open range doctrine, a legal framework rooted in the ranching traditions of the American West.
Understanding where open range applies, how it interacts with livestock districts, and what it means for your fencing and liability obligations is important whether you raise cattle, own rural land, or simply drive through agricultural areas. This guide walks through Oregon’s open range laws under Oregon Revised Statutes (ORS) Chapter 607 and related provisions, so you know exactly where you stand.
Important Note: This article is for general informational purposes only and does not constitute legal advice. If you have a specific dispute or legal question about livestock and property in Oregon, consult a licensed Oregon attorney.
What Is Open Range and How It Works in Oregon
Under Oregon law, “open range” means an area wherein livestock may lawfully be permitted to run at large. This definition, codified in ORS 607.005, establishes the foundational rule: in open range areas, livestock owners are not automatically required to fence their animals in. The burden shifts to neighboring landowners who want to keep animals out.
Open range refers to livestock that do not need to be fenced in unless they are in a designated area called a livestock district. This distinction is central to how Oregon’s agricultural law operates, and it has significant practical consequences for everyone who owns land or animals in rural parts of the state.
The Oregon Cattlemen’s Association has noted that open range laws keep fencing costs down, allow access to better grazing, and reduce liability. In dry Eastern Oregon, it can take 600 to 700 acres per cow to run one animal for a season, making those open range areas vital to the economic viability of livestock operations.
Under ORS 607.005, “livestock” means animals of the bovine species, horses, mules, asses, sheep, goats, and swine. It is worth noting that bison are treated separately: notwithstanding the contents of any livestock district application, an owner or possessor of bison or bison hybrids may not permit the bison or bison hybrids to run at large.
One additional rule applies specifically on the open range regarding bulls. No person shall turn upon, or allow to run upon, the open range, any bull other than a purebred bull of a recognized beef breed. The Oregon State Department of Agriculture defines what qualifies as a purebred bull of a recognized beef breed by regulation.
Open Range vs. Herd Districts in Oregon
Oregon’s system creates two legally distinct zones for livestock management. A “livestock district” means an area wherein it is unlawful for livestock or a class of livestock to run at large. Everything outside a designated livestock district defaults to open range. The terms “livestock district” and “herd district” are often used interchangeably in common usage, though Oregon’s statutes use “livestock district” as the official term.
A livestock district is a closed-range district where livestock may not run at large; the livestock owner or manager must keep livestock on their own property. This is the opposite of open range, and the legal obligations — including fencing duties and liability exposure — flip entirely when you cross into one.
All incorporated cities in Oregon are automatically livestock districts by statute. Beyond that automatic rule, each county in Oregon designates what areas are livestock districts. This means the boundary between open range and a livestock district can shift at the county level, and the rules that apply to your land depend entirely on where it falls within that county’s designations.
Pro Tip: Before purchasing rural land or moving livestock in Oregon, contact your county clerk or the Oregon Department of Agriculture brand recorder to confirm whether the property sits in open range or a livestock district. The Oregon Department of Agriculture’s range page is a useful starting point.
ORS Chapter 607 defines livestock districts and open range and sets the procedure and requirements for establishing or changing a livestock district, and the procedure is handled by the county clerk. When a livestock district is created or changed, written notification is sent to the Oregon Department of Agriculture.
Fencing Obligations for Landowners and Livestock Owners in Oregon
Fencing obligations in Oregon depend entirely on whether you are in open range or a livestock district — and which side of the fence you are on.
In open range, the general rule favors the livestock owner. A person who permits a horse, mule, ass, sheep, goat, or animal of the bovine species to trespass on land enclosed by an adequate fence and situated on open range is liable to the owner or lawful possessor of the enclosed land for damage done by the animal. In other words, if you want protection from roaming livestock on open range, you must build and maintain an adequate fence yourself.
An “adequate fence” means a continuous barrier consisting of natural barriers, structures, masonry, rails, poles, planks, wire, or a combination thereof, installed and maintained in a condition so as to form a continuous guard and defense against the ingress or egress of cattle or equines. Natural barriers may include hedges, ditches, rivers, streams, ponds, or lakes.
The adequacy of a fence is determined by reference to the customs and practices of good husbandry in the particular area, and the question of the existence of the fence and its adequacy are questions of fact. This means disputes over whether a fence was “adequate” are resolved by a court or the Oregon Department of Agriculture looking at local ranching norms — not a fixed statewide standard.
When livestock breaks through a fence on the open range and a determination of adequacy is needed, the State Department of Agriculture makes the determination of the adequacy of the fence and considers, among other things, the customs and practices of good husbandmen in the particular area with reference to fences.
When it comes to shared boundary fences, Oregon law provides a cost-sharing mechanism. When neighbors share a boundary fence, Oregon law allows for cost-sharing. If one landowner builds or repairs a partition fence that benefits the neighbor’s enclosure, they may be able to recover half the value or repair costs from that neighbor under ORS 96.010.
One notable exception involves hogs. The owner or occupant of premises is not required to fence against hogs. This means hog owners bear a separate duty to contain their animals regardless of whether the land is open range.
| Zone Type | Who Must Fence | Livestock Owner Liability |
|---|---|---|
| Open Range | Landowner (to keep livestock out) | Liable only if livestock breach an adequate fence |
| Livestock District | Livestock owner (to keep animals in) | Liable for animals running at large on another’s land |
| Incorporated City | Livestock owner (automatic livestock district) | Liable for animals running at large |
Livestock on Roads and Highways Under Oregon’s Open Range Law
One of the most practically important aspects of Oregon’s open range law involves public roads and highways. The rules are not uniform — they vary by road type, and the consequences of getting them wrong can be serious.
On state highways that pass through open range areas, livestock may lawfully be present. In open range areas, courts have found that there is generally no duty for owners to keep livestock off highways unless a specific law says otherwise, meaning that drivers in open range areas are often responsible for watching for roaming animals. This is a significant departure from what many drivers expect.
The interstate highway system is a firm exception to this rule. Notwithstanding the existence of an open range area, no person, except in case of emergency, shall drive, herd, pasture, graze, range, tether, or stake any livestock within the boundaries of the right of way for a state highway that is part of the national system of interstate and defense highways — specifically Interstate 5, Interstate 84, or Interstate 82.
While many state highways run through open range, it is illegal for livestock to roam on the interstate. Oregon law also contains specific restrictions for certain named highways. For example, ORS 607.510 prohibits livestock from running at large on designated segments of the Oregon Coast Highway, and ORS 607.515 covers the highway from Canyonville to the Umpqua National Forest.
It is also worth knowing that driving livestock along a road is not automatically prohibited even in livestock districts. ORS 607.045 is not intended to prohibit a person from driving livestock along a public road. This preserves the traditional right to move herds along public roads during drives.
Key Insight: If you are driving through rural Oregon, particularly in Eastern Oregon, slow down when you see livestock warning signs. On open range roads, the legal duty to avoid a collision may rest with you as the driver, not the livestock owner. This is consistent with Oregon case law going back to Kendall v. Curl (1960).
If you are interested in how Oregon handles other animal-related road incidents, the state’s roadkill laws in Oregon cover what happens when wildlife or livestock are struck on public roads.
Liability for Straying Livestock and Property Damage in Oregon
Liability for straying livestock in Oregon depends on whether the incident occurs in open range or a livestock district, and whether the damage involves private property or a public road.
Liability for damages depends on where the incident occurs and the type of harm caused. In a livestock district, owners are civilly liable for damages if their animals are found at large on another person’s land. Under ORS 607.044, this civil liability is strict within a livestock district — you do not need to prove the owner was negligent, only that the animals were unlawfully at large.
In open range, the liability picture is different. In open range areas, a person whose animals trespass on land protected by an adequate fence can be held liable for damages. If the land is not adequately fenced, the livestock owner generally bears no liability for trespass damage under Oregon’s open range statutes.
Highway accidents present a more nuanced analysis. For accidents on public highways, liability is usually decided based on simple negligence, meaning the owner must have failed to use reasonable care to contain the animals. Oregon courts have confirmed this standard. In Schwerdt v. Myers (1984), the Oregon Supreme Court held that simple negligence is the appropriate standard under ORS 607.045, and where a plaintiff’s vehicle was damaged in a collision with a cow on a public highway, this section did not establish a basis for statutory liability.
Regardless of the zone, owners may still face claims if they fail to take basic precautions to prevent their animals from causing foreseeable harm. For example, if an owner knows a particular fence section is failing and does nothing to repair it, a court could find negligence even in an open range area.
If you find livestock unlawfully running at large on your property, Oregon law gives you the right to “take up” the animals. “Taking up” means the intentional exertion of control over an estray animal, including but not limited to the restriction of movement, holding under herd, feeding, pasturing, or sheltering of the animal. After taking up livestock, you must follow the notification procedures set out in ORS 607.303 and 607.304 to inform the owner and the Oregon Department of Agriculture.
For a broader look at how Oregon law handles animal-related liability, you may also find it useful to review dog bite laws in Oregon, which follow a different liability framework based on negligence and strict liability principles.
Local Ordinances and County-Level Exceptions in Oregon
Oregon’s open range framework is not purely a statewide system. Counties hold meaningful authority to designate livestock districts, and that local-level action directly determines whether open range rules or livestock district rules apply to any given parcel of land.
A landowner who desires to create a livestock district, or to annex property to an existing livestock district, may apply to the county governing body for formation of, or annexation to, the district. The request must be filed with the county clerk of the county where the land proposed for inclusion in the district is located.
The process involves a formal public hearing. The governing body, or a hearings officer designated by the governing body, must schedule a public hearing regarding the request, and that hearing must be held not less than 30 or more than 90 days after receipt of the application. Notice of the hearing must be published once a week for two successive weeks prior to the time fixed for the hearing.
After the hearing, the county governing body acts on the application. The county governing body may deny or conditionally approve the application. An applicant for formation of a livestock district may, not later than 90 days after conditional approval, submit a petition signed by a majority of the landowners of record within the proposed district, and if that petition is received, the county governing body shall declare the livestock district established.
Existing livestock districts can also be dissolved or reduced. An area containing 2,000 acres or more may be withdrawn from a livestock district in the same manner as for annexation, except that a petition must be signed by all landowners of record within the area proposed to be withdrawn.
Beyond the general livestock district process, certain counties and specific highway corridors have their own statutory restrictions. Washington County, for example, has a blanket prohibition under ORS 607.520: no person, either as owner or in possession or control of any horses, mules, cattle, swine, sheep, or goats, shall permit them to run at large on any highway or public road in Washington County. Similar targeted restrictions exist for Klamath County and several named state highway segments.
Many open range states have open range exceptions in specified cities, counties, or other predetermined areas. Oregon is no different — the patchwork of county designations means that the rules on one side of a county line can be completely different from those on the other side.
Pro Tip: If you are a livestock owner operating near a county boundary, verify the livestock district status on both sides of that line. A livestock district cannot cross county boundaries under ORS 607.021, so the rules may change abruptly at the county line.
Oregon’s animal-related laws extend well beyond livestock. If you raise poultry or other animals on rural property, you may also want to review backyard chicken laws in Oregon, goat ownership laws in Oregon, beekeeping laws in Oregon, and rooster laws in Oregon to understand how local ordinances and state statutes interact across different types of livestock and farm animals.
Oregon’s open range system has deep roots in the state’s agricultural history, and it remains a functioning legal framework — not an artifact. Whether you are a rancher relying on open range for grazing, a rural landowner trying to protect your crops, or a driver navigating unfenced highways, knowing the rules under ORS Chapter 607 is the first step to protecting your rights and avoiding liability. When in doubt, check with your county clerk, the Oregon Department of Agriculture, or a licensed attorney familiar with Oregon agricultural law.