United States. Bureau of Land Management. Vale District2009-03-032009-03-032006-08-07https://hdl.handle.net/1794/867615 pp. Table. Captured August 2, 2007.The proposed action would be to remove all of the horses from the Sand Springs HMA in the fall of 2006 for a period of two growing seasons. The proposed action would include eventual return of all freeze branded fertility control mares in the Sand Springs HMA as they cannot be placed in the adoption program. At least twenty mares treated with the fertility control drug, PZP, would be retained in short term holding to be returned to the HMA after two growing seasons. 100 horses would be returned to the Sand Springs HMA, which is the minimum population of the range associated with the AML recommended in the SEORMP. Other criteria for returning horses to the HMA would be to maintain herd characteristics.en-USGrazing -- Environmental aspects -- Oregon -- Vale RegionGrazing districts -- Oregon -- Vale RegionWild horses -- Control -- Environmental aspects -- Oregon -- Vale RegionPublic lands -- Oregon -- Vale Region -- ManagementOther