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Designates boundaries to establish extent of distribution and management of Wild Horse and Burro territories. This is a published layer created by combining GIS data managed by each National Forest and attribute data stored in the Forest Service Infra database application. This dataset is designed for reporting and analysis and is not used to enter or edit data.

Pasture is a feature class in the Rangeland Management data set. It represents the area boundaries of livestock grazing pastures. The area corresponds to tabular data in the RIMS (Rangeland Information Management System).

Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for Californias wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (https://www.wildlife.ca.gov/Data/CWHR). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.

Designates boundaries to establish extent of livestock distribution and management within pastures. This is a published layer created by combining GIS data managed by each National Forest and attribute data stored in the Forest Service Infra database application. This dataset is designed for reporting and analysis and is not used to enter or edit data.

Polygon features depicting the Wild Horse and Burro Herd Areas.

Polygon features depicting the Wild Horse and Burro Herd Areas.

Feature Class for BLM Wild Horse and Burro Herd Areas. Herd Areas were designated in 1971 as places where wild horses and/or burros were found during the initial flights in 1971. Federal lands identified in 1971 but not managed for wild horses and burros are called Herd Areas. As additional surveys were done and data gathered, it was determined that some of these lands and animals were actually on private lands and/or were private animals. Areas with private animals that were claimed during the claiming period were not carried forward as Herd Areas. Herd Areas were carried forward in land use plans and determinations were made as to whether or not to manage animals on these federal lands. Federal lands identified in 1971 but managed for wild horses and burros are called Herd Management Areas. In Herd Management Areas, specific laws and regulations pertaining to the management of wild horses and burros are applied. The Bureau uses the term Herd Management Area; the Forest Service uses the term Wild Horse Territory. All Herd Management Areas need to be contained within an originally designated Herd Area. Management status can change based on changing conditions. The BLM Historical Wild Horse and Burro Herd Management Area polygon feature class remains empty until a change occurs to any of the BLM Wild Horse and Burro Herd Management Area polygons. When changes occur to a BLM Wild Horse and Burro Herd Management Area polygon, the original herd management area is moved to this historical polygon feature class. The resulting polygons are no longer active and are stored in this feature class for historical reference. The BLM Historical Wild Horse and Burro Herd Management Area features are a result of the BLM Wild Horse and Burro Herd Management Area polygons being permanently changed as a result of a business need.

Allotment is a feature class in the Rangeland Management data set. It represents the area boundaries of livestock grazing allotments that include active pastures associated with the allotment. The area corresponds to tabular data in the RIMS (Rangeland Information Management System).

This map shows the boundaries for BLM Wild Horse and Burro Herd Areas within the BLM Administrative State of Wyoming