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


Idaho Wilderness Study Report | 1991

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

Worm Creek WSA

The information below represents the work completed for public lands in Idaho during Phase III (Reporting).  The Report contains the BLM's recommendation of suitability or non-suitability for Wilderness designation of each WSA.  This information was transmitted to Congress through the Secretary of the Interior and the President. 

Congress has designated some WSAs addressed in the Report as Wilderness and released all or portions of some others.  

LIST Former WSAs :: CURRENT WSAs with acreages  

P.L. 111-11 Omnibus Public Lands Management Act of 2009 | Title I, Subtitle F  Wilderness Areas on BLM-managed lands in Idaho

Report Overview

Overview :: Summary & Recommendations :: Key Issues & Major Conclusions 

The list below groups WSAs in Idaho by District (region).  Click on each WSA name to view or download the part of the 1991 Report which relates to that area.  Click on map to the right of each WSA name to view a map showing location and authorized travel routes for that WSA.  Each report section contains the original map of the area.  To the far right are links to the Phase II studies for each WSA. 

Coeur d'Alene District

Crystal Lakemap                                   
Grandmother Mountain | map              
Marshall Mountain                                                           North Idaho MFP Amendment      
Selkirk Crest                                    
Snowhole Rapids   

Boise District

King Hill Creek (portion) | map                                    Jarbidge Wilderness EIS 
Box Creek                                                                          Statewide Small WSAs EIS 

Twin Falls District

King Hill Creek (portion) | map                                     Jarbidge Wilderness EIS 
Great Rift*                                                                          Great Rift Proposed Wilderness EIS
Black Canyon (Shoshone)map      
Deer Creekmap      
Friedman Creek | map                                                      
Gooding City of Rocks - Eastmap                         Shoshone-Sun Valley Proposed  MFP Amendment
Gooding City of Rocks - Westmap  
Little City of Rocks | map
Bear Den Butte*      
Little Deer*     
Raven's Eye*                                                                     Monument Wilderness EIS 
Sand Buttemap 
Shale Buttemap  
Shoshone | map
Black Buttemap     
Little Wood Rivermap                                                 Statewide Small WSAs EIS  
Lower Salmon Falls Creek      

* Portions of these WSAs — which lie in Craters of the Moon National Monument — are now managed by the National Park Service.  
   Section 603(c) of FLPMA continues to guide management of the acres that remain under BLM jurisdiction.

Idaho Falls District

China Cup Butte                                                              China Cup Butte RNA Wilderness Study Report 
Eighteenmilemap                                                         Lemhi Resource Area - Eighteenmile Wilderness EIS
Appendicitis Hillmap  
Burnt Creek | map                                                           Big Lost Pahsimeroi Wilderness EIS  
White Knob Mountains    
Corral-Horse Basinmap               
Jerry Peakmap                                                              Challis Proposed MFP Amendment 
Jerry Peak Westmap       
Black Canyon (Upper Snake)map   
Cedar Buttemap   
Hawley Mountainmap                                                Eastern Idaho Proposed MFP Amendment  
Hell's Half Acre |map   
Petticoat Peakmap  

Snake River Islands                                         Medicine Lodge Wilderness EIS 
Sand Mountain   

Borah Peak | map   
Boulder Creek | map   
Goldburg | map                                                                 Statewide Small WSAs EIS 
Henrys Lake | map  
Worm Creekmap  

Last updated: 07-11-2013