Herd Management Area and Herd Area Maps by State
This table contains links to available maps for Herd Management Areas (HMAs) and Herd Areas (HAs) under the BLM's jurisdiction. Clicking on a state takes you to that state's page with more information about specific HMAs and HAs.
About HMAs and HAs
The Wild Free-Roaming Horse and Burro Act of 1971 (Act) established herd areas (HAs) that Congress identified as a geographic area being used as habitat by a herd of wild horses at the time the Act was passed. To carrying out its duties under the Act, the BLM periodically evaluates each HA to determine if it has adequate food, water, cover and space to sustain healthy and diverse wild horse and burro populations over the long-term. The areas which meet these criteria are then designated as Herd Management Areas (HMAs) where horses or burros can be managed as a component of the public lands. The BLM does its work under the Act using HMAs as the main geographic unit.