Wyoming · Area of Critical Environmental Concern
Rock Creek ACEC
BLM found a wildlife resource, a scenic value and a fish resource here, and its plan calls for special management. BLM's records place 1 oil and gas lease and 1 right of way inside the line today, and five grazing allotments cover part of it. It covers 4,922 acres and was designated November 26, 2008, in the Pinedale 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
The rights of way
1 right of way sits inside the line. BLM files 1 under non-energy facilities.
- EXXON CO USA1right of way
The oil and gas leases
1 active oil and gas lease sits inside the line. 1 of it took effect before the area was designated on November 26, 2008.
- EXXONMOBIL CORP1lease
Grazing allotments
5 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Allotment USFS-GRZ-10022.01049149,587acres
- Upper N Labarge Ind18,568acres
- Allotment USFS-GRZ-10057.01049111,530acres
- Fox-Yose Common7,978acres
- Viola Ind2,344acres
The nearest areas
- Beaver Creek ACECWyoming · 3,100 acres · 4 oil and gas leases, 1 right of way, 2 grazing allotments covering part of it9miles
- Raymond Mountain ACECWyoming · 12,651 acres · 1 right of way, a grazing allotment covering part of it28miles
- Cushion Plant Community ACECWyoming · 62 acres · a grazing allotment covering part of it31miles
- Dairy Hollow RNAIdaho · 44 acres · a grazing allotment covering part of it39miles
- Pine Gap RNAIdaho · 238 acres · a grazing allotment covering part of it40miles
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 Rock Creek 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