Utah · Area of Critical Environmental Concern
Muddy Creek
BLM found a cultural value, a scenic value and a historic value here, and its plan calls for special management. BLM's records place at least 2 active mining claims inside the line today, and six grazing allotments cover part of it. It covers 25,118 acres and was designated October 31, 2008, in the Price Field Office RMP. In the plan's name, RMP stands for 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
Who holds the claims
At least 2 claims sit inside this line: 2 active, 2 with a holder BLM names. BLM lists 2 as Active.
- GEORGIA-PACIFIC GYPSUM LLC2claims
BLM's mining rules list designated ACECs among the places where mining that disturbs the surface beyond casual use needs a plan of operations BLM approves. Exploration of five acres or less can go ahead on a notice instead.
Grazing allotments
6 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Lone Tree121,014acres
- Rock Springs103,656acres
- Wild Horse94,774acres
- Mckay Flat52,915acres
- Red Canyon41,318acres
- Hondo13,704acres
The nearest areas
- Uranium Mining DistrictsUtah · 874 acres · 3 grazing allotments covering part of it6miles
- Uranium Mining DistrictsUtah · 14 acres · a grazing allotment covering part of it7miles
- Segers HoleUtah · 7,067 acres · 2 grazing allotments covering part of it8miles
- Uranium Mining DistrictsUtah · 1,296 acres · 1 right of way, 4 grazing allotments covering part of it8miles
- Heritage SitesUtah · 124 acres · at least 2 mining claims BLM lists as Filed, a grazing allotment covering part of it10miles
Next to it
Uranium Mining Districts Area of Critical Environmental Concern touches the line.
More from BLM's Utah office
Every area BLM's Utah 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 Muddy Creek. 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