The HMA, a subset of the allotment, offers 314 × 12 = 3,768 AUMs per year on 125,207 public acres, or 30.1 AUMs per year per thousand public acres.
The allotment offers 4,114 AUMs per year on 440,982 public acres, or 9.3 AUMs per year per thousand public acres.
If wild horses had principal use of the HMA, a feature of the original statute but opposed today by most advocates, the AML would increase by 9.3 × 125,207 ÷ 1,000 ÷ 12 = 97, assuming the resource is evenly distributed across the allotment.
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Western Horse Watchers Association 