Wyoming · Area of Critical Environmental Concern
Special Status Plant Species ACEC
BLM's map records no relevance finding for this one. BLM's records place no claim, lease or right of way inside the line today, and 19 grazing allotments cover part of it. It covers 4,469 acres and was designated December 22, 2024, in the Rock Springs Resource Management Plan.
One of the 1,120 places the Bureau of Land Management has designated an Area of Critical Environmental Concern. This page shows its line, what BLM found there and what sits inside it.
The line
Ground: USGS The National Map, topographic tiles. Boundaries: BLM's own, read Oct 20, 2026. The 19 grazing allotments below aren't marked.Grazing allotments
19 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Rock Springs2,185,958acres
- Red Desert256,733acres
- Eighteen Mile245,722acres
- Cedar Mountain212,754acres
- ANTELOPE HILLS197,226acres
- Figure 4119,095acres
- Sage Creek Mountain102,643acres
- Bush Rim98,854acres
- Continental Peak88,417acres
- Sugarloaf77,919acres
- Sublette72,004acres
- Steamboat Mountain34,201acres
- SAGE CREEK32,457acres
- Gold Creek25,171acres
- Pine Creek18,829acres
- Hickey Mountain8,222acres
- Antelope Wash8,178acres
- Peoples Canal2,068acres
- Cedar Point1,428acres
The nearest areas
- Pine Springs ACECWyoming · 6,486 acres · a grazing allotment covering part of it17miles
- Little Mountain ACECWyoming · 115,571 acres · 1 oil and gas lease, 20 rights of way, 10 grazing allotments covering part of it30miles
- White Mountain Petroglyphs ACECWyoming · 22 acres · a grazing allotment covering part of it40miles
- Red Creek WatershedUtah · 26,061 acres · 15 oil and gas leases, 9 rights of way, 9 grazing allotments covering part of it40miles
- Bridger Butte ACECWyoming · 604 acres · 3 grazing allotments covering part of it43miles
Next to it
Steamboat Mountain Area of Critical Environmental Concern, South Pass Historic Landscape Area of Critical Environmental Concern, Greater Red Creek Area of Critical Environmental Concern (Currant Creek Watershed), South Pass Historical Landscape Area of Critical Environmental Concern and 1 more touch the line.
More from BLM's Wyoming office
Every area BLM's Wyoming office holdsThe proposed rule
A proposed rule, RIN 1004-AF53, would change how BLM drafts every land use plan, and how it designates ACECs like Special Status Plant Species ACEC. The comment window hasn't opened: the proposed rule wasn't in the Federal Register at our last check. The Watch sends one email the day it prints.
The rule's abstract
The purpose of this rulemaking is to establish in regulations an updated process for the approval of the development, revision, amendment, and maintenance of land use plans, as provided for by the Federal Land Policy and Management Act of 1976, for public lands administered by the Bureau of Land Management (BLM). Additionally, this rulemaking will provide clarification of the process the BLM uses for designating Areas of Critical Environmental Concern.Unified Agenda entry for RIN 1004-AF53, Publication ID 2026, reginfo.gov (OMB OIRA), read Oct 18, 2026