40 CFR § 81.436 - Wyoming.
---
identifier: "/us/cfr/t40/s81.436"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 81.436 - Wyoming."
title_number: 40
title_name: "Protection of Environment"
section_number: "81.436"
section_name: "Wyoming."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "81"
part_name: "DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401,"
regulatory_source: "36 FR 22421, Nov. 25, 1971, unless otherwise noted."
cfr_part: "81"
---
# 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 | 2,020,625 | () | USDI-NPS |
| 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. | | | |
| 17 Stat. 32 (42nd Cong.). | | | |