; and (B) the Secretary of the Interior, with respect to National Park System land and public land. I Designation of wilderness 101. Purpose The purpose of this title is to designate certain National Forest System land, National Park System land, and public land administered by the Bureau of Land Management in the States of Idaho, Montana, Oregon, Washington, and Wyoming as wilderness and as components of the National Wilderness Preservation System in furtherance of the purposes of the Wilderness Act ( 16 U.S.C. 1131 et seq.). 102. Greater Glacier/Northern Continental Divide ecosystem (a) Definition of Map In this section, the term Map means the map entitled Northern Continental Divide and dated April 28, 2016. (b) Designations To protect the unique ecosystem of the greater Glacier/Northern Continental Divide ecosystem, the following land is designated as wilderness: (1) Bob Marshall Wilderness additions The following land is incorporated in, and shall be administered as part of, the Bob Marshall Wilderness: (A) Choteau Mountain/Teton High Peaks/Deep Creek Addition Certain Federal land within the Lewis and Clark National Forest and land administered by the Lewistown Field Office of the Bureau of Land Management comprising approximately 73,000 acres, identified as Choteau Mountain/Teton High Peaks/Deep Creek Addition on the Map. (B) Renshaw Addition Certain Federal land within the Lewis and Clark National Forest and land administered by the Lewistown Field Office of the Bureau of Land Management comprising approximately 30,000 acres, identified as Renshaw Addition on the Map. (C) Swan Front Addition Certain Federal land within the Flathead National Forest and Lolo National Forest comprising approximately 169,000 acres, identified as Swan Front Addition on the Map. (D) Hungry Horse Reservoir West Certain Federal land within the Flathead National Forest comprising approximately 179,000 acres, identified as Hungry Horse Reservoir West on the Map. (E) Bob North Addition Certain Federal land within the Flathead