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The Herd Management Area coverage is polygon coverage of Wild horse and Burro use areas. A "Herd Area" is defeind by the "Wild and Free-Roaming Horse and Burro Program Guidance, January 1983" as "The geographic area identified as having been used by a herd as its yearlong habitat in 1971" and a Herd Management Area" is defined as "A herd area identified in an approved land use plan where wild horses and burros will be maintain and managed." There are nine Herd Management Areas on the Surprise Resource Area, boundaries and attributes for these areas were gathered from various maps and reports.
Digitized vector data of wild horse & burro herd management areas in Arizona. These data represent locations where wild horses and/or burros are actively managed in designated Herd Management Areas. Digitized from 1:100,000 scale manuscripts prepared by Field Office Range Specialists or digitized on-screen and edited at 1:100,000 scale or larger by GIS specialists. Updates were made 10/2008 to reflect changes resulting from new Land Use Plans in the Lake Havasu and Yuma Field Offices. Data acquired from Arizona BLM in January 2011.
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