A wilderness study area (WSA) contains undeveloped United States federal land retaining its primeval character and influence, without permanent improvements or human habitation, and managed to preserve its natural conditions. The Bureau of Land Management (BLM) manages wilderness study areas under the National Landscape Conservation System to protect their value as wilderness until Congress decides whether to designate them as wilderness, including them in the National Wilderness Preservation System.
On BLM lands, a WSA is a roadless area that has been inventoried (but not designated by Congress) and found to have wilderness characteristics as described in Section 603 of the Federal Land Policy and Management Act of 1976 and Section 2(c) of the Wilderness Act of 1964. Wilderness Study Area characteristics are: