shall be known as the Madison Wilderness . (O) Lionhead Wilderness Certain Federal land within the Custer Gallatin National Forest and the Caribou-Targhee National Forest comprising approximately 48,000 acres, identified as Lionhead Wilderness on the Map, which shall be known as the Lionhead Wilderness . (P) Deep Lake Wilderness Certain Federal land within the Custer Gallatin National Forest and the Shoshone National Forest comprising approximately 90,000 acres, identified as Deep Lake Wilderness on the Map, which shall be known as the Deep Lake Wilderness . (Q) Monument Ridge Wilderness Certain Federal land within the Bridger-Teton National Forest comprising approximately 18,000 acres, identified as Monument Ridge Wilderness on the Map, which shall be known as the Monument Ridge Wilderness . (R) Munger Mountain Wilderness Certain Federal land within the Bridger-Teton National Forest comprising approximately 10,000 acres, identified as Munger Mountain Wilderness on the Map, which shall be known as the Munger Mountain Wilderness . (S) Little Sheep Mountain Wilderness Certain Federal land within the Bridger-Teton National Forest comprising approximately 14,000 acres, identified as Little Sheep Mountain Wilderness on the Map, which shall be known as the Little Sheep Mountain Wilderness . (T) Mt. Leidy Highlands Wilderness Certain Federal land within the Bridger-Teton National Forest comprising approximately 205,000 acres, identified as Mt. Leidy Highlands Wilderness on the Map, which shall be known as the Mt. Leidy Highlands Wilderness . (U) Salt River Range Wilderness Certain Federal land within the Bridger-Teton National Forest comprising approximately 245,000 acres, identified as Salt River Range Wilderness on the Map, which shall be known as the Salt River Range Wilderness . (V) Grayback Ridge Wilderness Certain Federal land within the Bridger-Teton National Forest comprising approximately 314,000 acres, identified as Grayback Ridge Wilderness on the Map, which shall be known as the Grayback Ridge Wilderness .