The incident started on July 15. Results through July 31:
- 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: 1,675, up from 1,517 on Day 15
- Shipped: 1,508, up from 1,291 on Day 15
- Released: 2, up from zero on Day 15
- Deaths: 9, up from 6 on Day 15
- Average daily take: 98.5
- Unaccounted-for animals: 158
- 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. The sidebar at the gather page says 1,677 horses captured, including a mule, and 1,510 shipped.
The capture goal has been reached.
The sidebar indicates that two stallions were released but this is not documented in the daily reports.
A foal died of capture shock and a stallion was euthanized on Day 16.
A foal was dispatched on Day 17.
The death rate is 0.5%.
The capture total includes 601 stallions, 720 mares and 354 foals, not counting the mule.
The sidebar says 603/719/355.
Youngsters represented 21.1% of the animals gathered.
Of the adults, 45.5% were male and 54.5% were female.
The location of the trap site is not known.
The name of the contractor was not given.
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: 20,100 AUMs per year
- Water: 16,750 gallons per day
The map shows the Rock Springs HMAs before the RMP amendments, which were halted by an appeals court ruling on July 15. Click to enlarge.
RELATED: Adobe Town Roundup, Day 15.

