CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > 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 (§81.400 to §81.437) > 81.415—Minnesota.

81.415—Minnesota.

Area name Acreage Public Law establishing Federal land manager
Boundary Waters Canoe Area Wild 747,840 99-577 USDA-FS
Voyageurs NP 114,964 99-261 USDI-NPS