GroundRules
40 CFR 81.417: Montana.
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER C—AIR PROGRAMS
- PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES
- Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value
Area name Acreage Public Law establishing Federal land manager
Anaconda-Pintlar Wild 157,803 88-577 USDA-FS
Bob Marshall Wild 950,000 88-577 USDA-FS
Cabinet Mountains Wild 94,272 88-577 USDA-FS
Gates of the Mtn Wild 28,562 88-577 USDA-FS
Glacier NP 1,012,599 61-171 USDI-NPS
Medicine Lake Wild 11,366 94-557 USDI-FWS
Mission Mountain Wild 73,877 93-632 USDA-FS
Red Rock Lakes Wild 32,350 94-557 USDI-FWS
Scapegoat Wild 239,295 92-395 USDA-FS
Selway-Bitterroot Wild 1 251,930 88-577 USDA-FS
U. L. Bend Wild 20,890 94-557 USDI-FWS
Yellowstone NP 2 167,624 (3) USDI-NPS
1 Selway-Bitterroot Wilderness, 1,240,700 acres overall, of which 988,770 acres are in Idaho and 251,930 acres are in Montana.
2 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.
3 17 Stat. 32 (42nd Cong.)
Collected 2026-08-27T02:26:04Z. Source file · JSON