Arizona · Area of Critical Environmental Concern
Little Black Mountain
BLM found a cultural value here, and its plan calls for special management. BLM's records place no claim, lease or right of way inside the line today, and a grazing allotment covers part of it. It covers 241 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
Ground: USGS The National Map, topographic tiles. Boundaries: BLM's own, read Oct 20, 2026. The grazing allotment below isn't marked.Grazing allotments
A grazing allotment covers part of this line. Its permittee isn't named here yet.
- Blake Pond21,535acres
The nearest areas
- Fort PearceArizona · 5,724 acres · 3 grazing allotments covering part of it4miles
- Warner Ridge / Fort PearceUtah · 4,286 acres · 10 rights of way, 6 grazing allotments covering part of it4miles
- Webb HillUtah · 520 acres · 8 rights of way6miles
- StatelineUtah · 1,410 acres · 3 rights of way, 2 grazing allotments covering part of it7miles
- Black KnollsArizona · 428 acres · at least 1 active mining claim, 1 right of way, 2 grazing allotments covering part of it8miles
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 Little Black Mountain. 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