This resource might be a suitable alternative to the National Data Viewer, which now requires a login.
Recommended basemap:
- Terrain with Labels
Essential layers:
- BLM National Surface Management Agency
- BLM Natl Grazing Allotment Polygons
- BLM Natl Wild Horse and Burro Herd Area Polygons
- BLM Natl Wild Horse and Burro Herd Mgmt Area Polygons
Each layer has customizable properties, such as labels and outline and fill colors.
RELATED: BLM Puts NDV Off Limits?
Western Horse Watchers Association 