Certain Federal land within the Lolo National Forest comprising approximately 9,208 acres, identified as North Siegel on the Map, which shall be known as the North Siegel Wilderness . (K) Reservation divide wilderness Certain Federal land within the Lolo National Forest comprising approximately 19,908 acres, identified as Reservation Divide on the Map, which shall be known as the Reservation Divide Wilderness . (L) Burdette wilderness Certain Federal land within the Lolo National Forest comprising approximately 16,018 acres, identified as Burdette on the Map, which shall be known as the Burdette Wilderness . (M) Petty mountain/deep creek wilderness Certain Federal land within the Lolo National Forest comprising approximately 23,847 acres, identified as Petty Mountain/Deep Creek on the Map, which shall be known as the Petty Mountain/Deep Creek Wilderness . (N) Fleecer wilderness Certain Federal land within the Beaverhead-Deerlodge National Forest comprising approximately 36,118 acres, identified as Fleecer on the Map, which shall be known as the Fleecer Wilderness . (O) Highlands wilderness Certain Federal land within the Beaverhead-Deerlodge National Forest comprising approximately 21,215 acres, identified as Highlands on the Map, which shall be known as the Highlands Wilderness . (P) Basin creek wilderness Certain Federal land within the Beaverhead-Deerlodge National Forest comprising approximately 9,681 acres, identified as Basin Creek on the Map, which shall be known as the Basin Creek Wilderness . (Q) Granulated mountains wilderness Certain Federal land within the Beaverhead-Deerlodge National Forest comprising approximately 15,180 acres, identified as Granulated Mountains on the Map, which shall be known as the Granulated Mountains Wilderness . (R) Black sage wilderness Certain public land administered by the Butte Field Office of the Bureau of Land Management comprising approximately 5,917 acres, identified as Black Sage on the Map, which shall be known as the Black Sage Wilderness . (S) Ruby range