Acreages within National Forest lands Wilderness only, National Forest lands Special Designated Areas only and National Forest lands Special Designated Areas within Inventoried Roadless Areas
All acreage figures are rounded to the nearest 1,000 and are mutually exclusive (i.e. acreages are not double counted).
Region	Wilderness	SDA	SDA + IRA	Sum
1	4,990	188	757	5,935
2	4,791	89	252	5,133
3	2,709	715	298	3,722
4	5,388	694	704	6,787
5	4,277	853	316	5,446
6	4,762	1,043	683	6,488
8	715	428	89	1,232
9	1,310	202	58	1,570
10	5,747		2,858	8,605
Sum	34,690	4,214	6,015	44,919