BLM-Idaho > National Landscape Conservation System > Wilderness Study Areas (WSAs)

Final Environmental Impact Statements (WSAs) | 1980-1989


canyon along the Owyhee River, viewed from river-level


In 1978, the BLM began reviewing the lands it administered to ascertain which of them possessed wilderness characteristics, as defined in the Wilderness Act (1964). This review was conducted in each State in three phases: Inventory, Study and Reporting.  The documents below reflect the work completed during Phase II (Study). 

The BLM studied alternatives for designating wilderness study areas (WSAs) as all wilderness, partially wilderness or no wilderness.  This information is found in the studies linked below.

North Idaho MFP Amendment | 1983
Shoshone-Sun Valley Proposed MFP Amendment | 1985
Big Lost Pahsimeroi Wilderness | 1986
Challis Proposed MFP Amendment | 1986
Eastern Idaho Proposed MFP Amendment | 1986
Jarbidge Wilderness | 1987
Lemhi Resource Area - Eighteenmile Wilderness | 1987
Monument Wilderness | 1987
Medicine Lodge Wilderness | 1988
Statewide Small WSAs | 1989 

The WSAs in the studies below have either been designated as Wilderness or released from WSA status.  Their respective EISs are presented for historical and reference purposes only and do not reflect current land ststus.

  Owyhee Wilderness Proposed MFP Amendment | 1986 
  Jacks Creek Wilderness | 1989 
  Owyhee Canyonlands Wilderness | 1989   

The Great Rift WSA was transferred to the National Park Service in 2000.  The Great Rift Proposed Wilderness EIS (1980) is presented for historical reference only.