The BLM began the wilderness review in accordance with the requirements of Section 603(c) of the Federal Land Policy and Management Act (FLPMA) dated October 21, 1976. This Act mandated that within 15 years the BLM would inventory and study its lands for their wilderness suitability and that based on this review, the Secretary of Interior would forward his wilderness recommendations to the President.
United States Bureau of Land Management, "Wyoming Wilderness Study Report Statewide Overview" (1991). All U.S. Government Documents (Utah Regional Depository). Paper 250.