In response, officials with the Wilderness Society published a map of wilderness and wilderness study areas – including in Idaho – that the nonprofit organization says could be affected by the review. (Click here to open the map in a new window)Idaho includes 41 designated wilderness study areas that cover more than 544,000 acres, according to the Wilderness Society. Idaho’s wilderness study areas include Eighteen Mile Wilderness Study Area, situated along the Continental Divide Trail, the Borah Peak Wilderness Study Area that includes that state’s highest mountain and the Marshall Mountain Wilderness Study Area, located next to the more well-known Frank Church- River of No Return Wilderness. Why is the Trump administration reviewing wilderness policies? Carroll encouraged Idahoans to make public comments that support keeping public lands public and oppose rolling back protections and policies governing wilderness areas.