 Most of the Rogue–Umpqua Divide is covered in a dense forest composed of sugar pine, grand fir, mountain hemlock, western white pine, incense cedar, subalpine fir, western redcedar, white fir, ponderosa pine, Douglas-fir, Alaska cedar, shasta red fir, lodgepole pine, pacific silver fir, western hemlock, and whitebark pine.The Acker Divide and Cripple Camp trails lead through large stands of old-growth forests.Popular recreational activities in the Wilderness include hiking, camping, and wildlife watching.