Approximately 600 animals will be removed from the Sulphur HMA beginning August 15, according to a BLM news release issued today.
The operation, to be carried out with helicopters, will be open to public observation.
The HMA covers 265,711 acres in western Utah and has an AML of 250, for an aimed-at stocking rate of 0.9 horses per thousand acres.

The announcement did not refer to the NEPA project that authorized the roundup, but this one, initiated in 2015, may be relevant.
Table 3.2 in the Final Environmental Assessment indicates that the HMA intersects nine grazing allotments. The total estimated forage available to livestock inside the HMA is 10,256 AUMs per year, compared to 3,000 AUMs per year for the horses.
The current population of 1,193 horses would consume 14,316 AUMs per year.
Captured animals will be taken to the off-range corrals in Axtell, UT.
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