The incident started on July 15. Results through July 21:
- Scope: Adobe Town HMA
- Target: Horses
- AML: 536 (was 800)
- Pre-gather population: Not given, 2,382 according to 2025 population dataset
- Type: Planned
- Method: Helicopter
- Category: Cruel and costly (according to advocates)
- Better way: Sterilize the mares with PZP (according to advocates)
- Capture goal: 1,675
- Removal goal: 1,675
- Captured: 641, up from 409 on Day 5
- Shipped: 413, up from 170 on Day 5
- Released: None
- Deaths: 4, up from 1 on Day 5
- Average daily take: 91.6
- Unaccounted-for animals: 224
- Snippet from statute: It is the policy of Congress that wild free-roaming horses and burros shall be protected from capture, branding, harassment, or death
- Snippet from manual: To protect wild horses and burros from unauthorized capture, branding, harassment or death
The figures above are based on the daily reports.
A mare was found dead in a trailer on Day 6. Another mare died in a trailer on Day 7 and a foal died in the trap, lifting the death rate is 0.6%.
The capture total includes 216 stallions, 277 mares and 148 foals. A mule was caught on Day 7, not included in the total.
Youngsters represented 23.1% of the animals gathered.
Of the adults, 43.8% were male and 56.2% were female.
The location of the trap site is not known.
The name of the contractor was not given.
The shipping destination was not disclosed.
There are no plans to treat any of the mares with fertility control pesticides and return them to the range.
The HMA is subject to permitted grazing. Resources liberated to date:
- Forage: 7,692 AUMs per year
- Water: 6,410 gallons per day
The map shows the Rock Springs HMAs before the RMP amendments, which were halted by an appeals court decision on July 15. Click to enlarge.
RELATED: Adobe Town Roundup, Day 5.

