40 CFR § 81.436 - Wyoming.

§ 81.436 Wyoming.
Area name Acreage Public Law establishing Federal land manager
Bridger Wild 392,160 88–577 USDA-FS
Fitzpatrick Wild 191,103 94–567 USDA-FS
Grand Teton NP 305,504 81–787 USDI-NPS
North Absaroka Wild 351,104 88–577 USDA-FS
Teton Wild 557,311 88–577 USDA-FS
Washakie Wild 686,584 92–476 USDA-FS
Yellowstone NP 1 2,020,625 ( 2) USDI-NPS

1 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.

2 17 Stat. 32 (42nd Cong.).