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The desert Argued over Since 2016

The Salt River Wild Horses: The 2015 Roundup Fight and the 2016 Law

The Salt River wild horses graze the riverbanks east of Scottsdale, and the fight over them made national news. In 2015 a Forest Service notice proposed rounding them up as stray livestock; Arizonans revolted, and a May 2016 law signed by Governor Doug Ducey made harassing or killing them a crime. What they are, and how many, is still argued.

Illustration for The Salt River wild horses: the desert

In one line

The Salt River wild horses: The free-roaming horse herd of the lower Salt River in the Tonto National Forest, northeast of Scottsdale. Locals call them the wild horses, the Forest Service once called them stray livestock, and a 2016 state law made harming them a crime.

Also called Salt River horses, wild horses of the Salt River, Salt River herd, Tonto wild horses.

The 30-second version

  • On July 31, 2015, the Tonto National Forest posted an impound notice for the herd as 'unauthorized livestock,' citing collisions on Bush Highway and horses in recreation sites.
  • The notice drew more than 30,000 petition signatures and a 50-page counterproposal; the Forest Service delayed 120 days and rescinded it before Christmas 2015.
  • Governor Doug Ducey signed HB 2340, sponsored by Rep. Kelly Townsend of Mesa, on May 11, 2016, after the Senate passed it 27 to 2.
  • The law makes harassing, shooting, injuring, killing or slaughtering a Salt River horse a class 1 misdemeanor and declares the horses are not stray animals.
  • The Forest Service estimated 'as many as 100' horses in 2015; the 2016 legislative fact sheet said the exact number was unknown, and counts since have been disputed.

Shelf

The desert

Status

Argued over

Disputed, or used against the people who coined it.

On record since

2016

Who said it first

The Salt River Wild Horse Management Group, the volunteer nonprofit that named and championed the herd

What it means

Say the wild horses in Scottsdale and nobody asks which ones. You mean the Salt River wild horses, the free-roaming herd that grazes the cottonwood and mesquite banks of the lower Salt River where it comes out of the dams northeast of the city, in the Tonto National Forest, under cliffs and saguaros about 45 minutes from Old Town. They wade the river at dawn, they cross Bush Highway at dusk, and a photograph of a bay mare belly-deep in green water with a saguaro behind her has become one of the Valley’s stock images. The river guide covers where and how to see them without being a jerk about it; this page covers the fight over them.

Because the herd’s fame rests on a fight. For most of a century the horses were simply there. In 2015 the Forest Service announced it would remove them, and the reaction, from petitions to the Governor’s desk, turned a few dozen or a few hundred horses into a state cause and gave them a legal status that exists nowhere else in Arizona: protected by a law written for them alone.

Where you’ll meet it

On the lower Salt below Saguaro Lake, at the Coon Bluff, Phon D Sutton, Goldfield and Granite Reef recreation sites off Bush Highway; floating past on a summer tube; and in every argument about public land in the East Valley since 2015.

Where the word came from

The horses were not called anything in particular until a group of volunteers started counting them. The Salt River Wild Horse Management Group, a nonprofit that says it has monitored the herd for two decades, gave the animals their public name, their individual names, and eventually their constituency. How long horses have run the lower Salt is itself disputed: advocates say more than a century and point to the Forest Service’s own acknowledgment of horses there since the 1930s; the agency’s position was that whatever their history, these animals had no legal standing.

That gap was the whole problem. The 1971 Wild Free-Roaming Horses and Burros Act protects horses only on land where the government designated a herd territory, and the Tonto never did. So when the Forest Service decided the horses were a public safety problem, horses hit on Bush Highway and wandering into recreation sites, it had one tool. On July 31, 2015, it posted a notice declaring them unauthorized livestock subject to impound and sale, with as little as a week before a roundup could begin. The agency estimated as many as 100 animals.

The response was loud and fast. The management group gathered more than 30,000 petition signatures, submitted a 50-page alternative built on birth control and sanctuary placement, and the state’s politicians lined up behind it. The Forest Service agreed to a 120-day delay and then, just before Christmas 2015, rescinded the notice. That October a mare the volunteers called Dotty was shot and killed, which hardened the mood. In the 2016 session Rep. Kelly Townsend of Mesa introduced HB 2340; it passed the House in February, cleared the Senate 27 to 2 in April, and Governor Doug Ducey signed it on May 11, 2016, with riders waving flags outside.

What it is not

Not a federally protected wild herd, like the burros at Lake Pleasant or the horses of the BLM ranges, and not anyone’s livestock. The law created a third category: Salt River horses, defined as horses that have historically inhabited the Tonto National Forest and carry no ownership brand.

The fine print

HB 2340 does five things, according to the Senate fact sheet. It makes harassing, shooting, injuring, killing or slaughtering a Salt River horse a class 1 misdemeanor. It bars anyone from interfering with, taking, chasing, capturing or euthanizing one without written authorization from the Arizona Department of Agriculture or the county sheriff, granted for humane purposes only. It declares the horses are not stray animals and are not subject to livestock seizure. It makes releasing a domestic horse into the wild a misdemeanor too, to stop people dumping animals into the herd. And it conditions the whole thing on the state signing an agreement with the Forest Service to manage the herd, which the law required by the end of 2017; the Department of Agriculture may contract the work to a private group, which in practice has meant the volunteers.

What the law does not settle is the number or the method. The fact sheet admitted the count was unknown. The management group runs a fertility-control program using PZP darts, an emergency feeding protocol in drought, fence repairs along Bush Highway and rescues of injured foals, all on donations. Critics, including some of the same advocates, argued in 2016 that the bill came with no funding and allowed the state to geld, spay or even cull the herd under the banner of management. The Community downstream, the Salt River Pima-Maricopa Indian Community, owns the land the river enters below Granite Reef and has its own view of horses that cross onto it.

For a visitor the rules are simpler than the politics. Tonto passes, dawn or dusk, long lens, no feeding, no approach, dog in the car, speed limit on Bush Highway. The horses’ survival depends less on the misdemeanor than on nobody teaching them that cars carry carrots.

The lexicon entries this one leans on.

Where you'll meet it on this site

The guides that carry the full story.

The Salt River wild horses by the numbers

July 31, 2015

Roundup notice

May 11, 2016

Law signed

Class 1 misdemeanor

Penalty for harming one

Questions people actually ask

Are the Salt River horses really wild?

Legally they are neither wild nor livestock. They never got federal protection under the 1971 Wild Free-Roaming Horses and Burros Act because the Forest Service never designated a horse territory on the Tonto, which is why it could call them stray livestock in 2015. Arizona's 2016 law declared them not stray animals and protected them under state law instead.

Where can I see the Salt River wild horses?

Along the lower Salt River in the Tonto National Forest below Saguaro Lake, reached by Bush Highway and Usery Pass Road on the Mesa side, roughly 45 minutes from Old Town. Coon Bluff, Phon D Sutton, Goldfield and Granite Reef recreation sites are the usual spots, early morning or evening. A Tonto pass is required to park.

How many Salt River wild horses are there?

Nobody agrees. The Forest Service estimated as many as 100 in 2015; the legislature's 2016 fact sheet said the number was unknown. The volunteer management group has counted several hundred in later years and runs a fertility-control darting program to hold the herd steady. Treat any single figure as an estimate.

Is it illegal to feed or approach the horses?

Harassing them is a class 1 misdemeanor under the 2016 law, and the Forest Service and the management group both ask visitors to keep a long distance and never feed. Feeding draws horses to Bush Highway, where collisions were the original argument for removing them, and a horse that approaches cars is a horse that eventually dies on the road.

Where this comes from

The record behind the entry.

Vernacular & LexiconSaguaroThe East ValleyMesquite

Facts checked: October 2, 2026 • Curated by the Scottsdale.tips editors • Plain-English explainer. Usage changes faster than the record; corrections are welcome.

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