Mountain Wilderness. (13) North fork smith wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 9,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the North Fork Smith Wilderness. (14) Big snowies wilderness 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 105,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the Big Snowies Wilderness. (15) Highwoods wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 25,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the Highwoods Wilderness. (16) Highwood baldy wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 16,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the Highwood Baldy Wilderness. (17) Calf creek wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 10,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the Calf Creek Wilderness. (18) Eagle creek wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 6,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the Eagle Creek Wilderness. (19) Castle mountains wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 28,000 acres, as generally depicted on the map entitled _____ and dated _____, which shall be known as the Castle Mountains Wilderness. (20) Box canyon wilderness Certain Federal land within the Lewis and Clark National Forest comprising approximately 15,000 acres, as generally depicted on the map entitled _____ and