Regulations last checked for updates: May 16, 2024

Title 40 - Protection of Environment last revised: May 14, 2024
§ 81.410 - Idaho.
Area name Acreage Public Law establishing Federal land manager
Craters of the Moon Wild43,24391-504USDI-NPS
Hells Canyon Wild 183,80094-199USDA-FS
Sawtooth Wild216,38392-400USDA-FS
Selway-Bitterroot Wild 2988,77088-577USDA-FS
Yellowstone NP 331,488( 4)USDI-NPS

1 Hells Canyon Wilderness, 192,700 acres overall, of which 108,900 acres are in Oregon and 83,800 acres are in Idaho.

2 Selway Bitterroot Wilderness, 1,240,700 acres overall, of which 988,700 acres are in Idaho and 251,930 acres are in Montana.

3 Yellowstone National Park, 2,219,737 acres overall, of which 2,020,625 acres are in Wyoming, 167,624 acres are in Montana, and 31,488 acres are in Idaho.

4 17 Stat. 32 (42nd Cong.).

authority: 42 U.S.C. 7401,
source: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 81.410