Arizona · Area of Critical Environmental Concern
Marble Canyon
BLM found a natural system, a wildlife resource, a cultural value and a scenic value here, and its plan calls for special management. BLM's records place 1 right of way inside the line today, and two grazing allotments cover part of it. It covers 11,500 acres and was designated January 29, 2008, in the Arizona Strip Field Office RMP and ROD. In the plan's name, RMP stands for resource management plan and ROD for record of decision.
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.
- USGS1right of way
Grazing allotments
2 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Soap Creek129,791acres
- Badger Creek6,675acres
The nearest areas
- Johnson SpringArizona · 3,445 acres · 7 grazing allotments covering part of it38miles
- ShinarumpArizona · 3,238 acres · at least 1 active mining claim, 4 grazing allotments covering part of it44miles
- Kanab CreekArizona · 13,147 acres · at least 12 active mining claims, 7 grazing allotments covering part of it48miles
- No Mans MesaUtah · 1,464 acres · 2 grazing allotments covering part of it49miles
- Fiftymile MountainUtah · 54,845 acres · 5 grazing allotments covering part of it54miles
More from BLM's Arizona office
Every area BLM's Arizona 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 Marble Canyon. 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