1. The Grazing Service , along with the mavericks, from the lands they administered. 2. The TGA authorized the Grazing Service to grant ranchers individual grazing allotments and set fees for grazing. 3. In 1939, the Grazing Service began to directly hire people to remove horses from public land. 4. In 1946, the BLM was formed by combining the General Land Office and the Grazing Service . 5. In 1946, the Grazing Service and the GLO were combined to create the Bureau of Land Management. 6. The Grazing Service was merged with the General Land Office in 1946 to form the Bureau of Land Management. 7. The BLM was given the responsibilities of the former U . S . Grazing Service and General Land Office. 8. The job of the Grazing Service was to permit livestock grazing on the public land and horses were livestock. 9. The Grazing Service was merged with the General Land Office in 1946 to form the Bureau of Land Management ( BLM ). 10. The Bureau of Land Management was formed in 1946 by combining the General Land Office and the U . S . Grazing Service .