Judge limits Oregon wild horse roundup, citing genetic diversity concerns

Temporary court order caps capture of Riddle Mountain herd after wildfire

By LineZotpaper

Published20 October 2026

Read Time3 min

A federal judge has limited a U.S. Bureau of Land Management roundup of wild horses in southeastern Oregon, allowing about 140 captures instead of the estimated 418 horses the agency had planned to gather from the Riddle Mountain herd.

Federal land managers have begun capturing wild horses from the Riddle Mountain herd, about 140 animals, after a wildfire swept through much of the area in southeastern Oregon. The U.S. Bureau of Land Management had initially planned to gather the entire herd, estimated at 418 horses, but a temporary court order from U.S. District Judge Karin Immergut limited the operation.

The judge found the bureau failed to adequately study how the roundup would affect genetic diversity among wild horses in the area, and said the agency relied on what she called "ocular estimation" to conclude the fire had severely reduced forage, describing that as "little more than a guess."

The BLM lamented the order, warning it would leave hundreds of horses "in peril" this winter because they would not have enough forage to survive. "Our priority is to protect as many of these horses as we're allowed," said Don Rotell, the Burns district manager. "We need to act before late fall rain limits access."

Wild horse advocates celebrated the ruling. "It's great to see the judge cut through the excuses and bureaucratic smokescreens the BLM throws up to justify its arbitrary suppression of wild horse populations," said Theresa Barbour, president and executive director of the Oregon Wild Horse Organization.

The dispute is the latest chapter in a long-running conflict between land managers, ranchers and wild horse advocates. Advocates first sued the bureau in 2024 over a broader plan to remove horses from the Kiger and Riddle Mountain herds; two years later, the BLM announced an emergency roundup following the 2026 Bald Mountain Fire.

Ecologists and advocates sometimes disagree over whether wild horses belong on Western landscapes and how many the land can sustain. Wild horses, like livestock, can stress rangeland habitats when too numerous. The bureau is legally required to protect wild horses as "living symbols of the historic and pioneer spirit of the West." Erik Molvar of the Western Watersheds Project, which joined the suit, argued that while wild horses may reduce native grasslands, they are a minor problem compared with cattle and sheep. "Wild horses are only a distraction," he said.

The bureau regularly gathers wild horses and burros to prevent overpopulation and sells many at auction. Earlier this year, the New York Times reported that the bureau has been selling horses to buyers who then resell them to slaughterhouses, and that sales drastically increased during President Donald Trump's first year in office, though some ecologists believe sales were too low before that.

Analysis

Why This Matters

The ruling checks a federal agency's emergency authority over wild horses on public lands, at least temporarily.
It puts a spotlight on how the BLM balances forage, wildfire damage and genetic diversity when managing herds.
The underlying lawsuit over the Kiger and Riddle Mountain herds continues and could reshape future roundups.

Background

Wild horses are protected under federal law as living symbols of the historic and pioneer spirit of the West, but the BLM is also tasked with balancing multiple uses of public lands, including grazing for livestock. Wild horses can stress rangeland habitats when their numbers are too high. Although horses originated in North America, they disappeared about 10,000 years ago; today's wild horses descend from breeds introduced by European settlers.

Key Perspectives

Bureau of Land Management: The agency argues the emergency roundup is necessary to protect horses from a wildfire-related forage shortage and says the court order leaves hundreds of horses in peril this winter. Wild horse advocates: They argue the BLM uses excuses and bureaucratic smokescreens to suppress wild horse populations to benefit ranchers, and welcomed the judge's ruling. Ecologists and ranchers: Some ecologists note wild horses can stress rangeland, though others say livestock cause the majority of grazing impacts; ranchers and land managers generally support removals to protect forage.

What to Watch

How many horses are ultimately captured under the limited roundup and how the BLM manages the rest before winter.
The broader lawsuit over the Kiger and Riddle Mountain herds, where the judge's genetic diversity concerns could matter.
Whether the BLM changes how it assesses forage after wildfire, given the judge's criticism of ocular estimation.
Scrutiny of wild horse auction sales following the New York Times slaughterhouse investigation.

Sources

Judge limits wild horse capture in southeastern Oregon · OPB

Checked

11 claims in this story checked against 1 source: 10 supported.

Show each claim

SupportedA temporary court order limits the roundup to about 140 horses rather than the planned 418.OPB: “Federal land officials are rounding up about 140 wild horses in southeastern Oregon after a wildfire burned across much of the area. The U.S. Bureau of Land Management began capturing horses from the Riddle Mountain herd southeast of Burns in Harney County on Tuesday. Land officials initially planned to gather the entire herd, an estimated 418 horses, but a temporary court order limited the roundup.”
SupportedThe judge limited the roundup because of concerns about genetic diversity.OPB: “In her order, U.S. District Judge Karin Immergut found the bureau failed to adequately study how the roundup would affect genetic diversity among wild horses in the area.”
SupportedThe BLM began capturing horses after a wildfire burned across much of the area.OPB: “Federal land officials are rounding up about 140 wild horses in southeastern Oregon after a wildfire burned across much of the area.”
SupportedJudge Karin Immergut said the BLM relied on “ocular estimation” to assess the fire’s effect on forage and called it “little more than a guess.”OPB: “Immergut said the bureau relied on “ocular estimation” to determine a wildfire had severely reduced forage, which she described as “little more than a guess.””
SupportedThe BLM warned the order would leave hundreds of horses “in peril” because they would not have enough forage to survive the winter.OPB: “The bureau lamented the order in a press release, saying it would leave hundreds of horses “in peril” this winter, arguing they wouldn’t have enough forage to survive.”
SupportedDon Rotell said, “Our priority is to protect as many of these horses as we’re allowed.”OPB: ““Our priority is to protect as many of these horses as we’re allowed,” said Don Rotell, Burns district manager, in a press release.”
SupportedRotell said, “We need to act before late fall rain limits access.”OPB: ““We need to act before late fall rain limits access.””
SupportedTheresa Barbour said the judge cut through the BLM’s “excuses and bureaucratic smokescreens.”OPB: ““It’s great to see the judge cut through the excuses and bureaucratic smokescreens the BLM throws up to justify its arbitrary suppression of wild horse populations,” said Theresa Barbour, president and executive director of the Oregon Wild Horse Organization.”
Partly supportedWild horses, like livestock, can stress rangeland habitats when they are too numerous.OPB: “Similar to livestock and other grazing animals, wild horses can stress rangeland habitats if there are too many of them in one area.”
SupportedAdvocates sued the BLM in 2024 over a broader plan involving the Kiger and Riddle Mountain herds, and the BLM announced an emergency roundup two years later after the 2026 Bald Mountain Fire.OPB: “Wild horse advocates initially sued the bureau in 2024 over a broader plan to remove horses from the Kiger and Riddle Mountain herds. Two years later, the BLM announced an emergency roundup following the 2026 Bald Mountain Fire.”
SupportedThe New York Times reported that the BLM sold horses to buyers who resold them to slaughterhouses, and that sales increased drastically during President Donald Trump’s first year in office.OPB: “Earlier this year, a New York Times investigation found the bureau has been selling horses to buyers who then resell them to slaughterhouses . According to the report, wild horse sales drastically increased during President Donald Trump’s first year in office”