Arizona · Area of Critical Environmental Concern
Beale Slough Riparian & Cultural
BLM found a natural system, a wildlife resource and a cultural value here, and its plan calls for special management. BLM's records place 3 rights of way inside the line today. It covers 2,206 acres and was designated May 10, 2007, in the Lake Havasu 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
The rights of way
3 rights of way sit inside the line. BLM files 2 under non-energy facilities and 1 under interstate energy facilities.
- ATCHISON TOPEKA & SANTA FE2rights of way
- SOUTHERN CALIFORNIA GAS CO - LAND RIGHT WAY DEPT1right of way
The nearest areas
- Dead MountainsCalifornia · 28,563 acres · 5 rights of way20miles
- Crossman Peak ScenicArizona · 48,870 acres · at least 4 active mining claims and 5 more BLM lists as Filed, 16 rights of way, 4 grazing allotments covering part of it21miles
- Bigelow ChollaCalifornia · 5,749 acres · 1 right of way22miles
- Bullhead Bajada Natural & CulturalArizona · 7,087 acres · at least 123 active mining claims and 1 more BLM lists as Filed, 6 rights of way23miles
- ChemehueviCalifornia · 924,200 acres · at least 17 active mining claims and 28 more BLM lists as Filed, 36 rights of way, a grazing allotment covering part of it26miles
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 Beale Slough Riparian & Cultural. 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