Wild Horse & Burro Herd Management Areas (HMAs)
- The Vernal Field Office manages one herd area - Winter Ridge with a population of 120.
- The office also has one HMA in Hill Creek with an Appropriate Management Level (AML) herd set for 195 animals.
- According to the Book Cliffs Resource Management Plan, there are 88,173 acres in the Hill Creek HMA and 46,500 acres in the Winter Ridge herd area.