Nevada · Area of Critical Environmental Concern
River Mountains
BLM found a wildlife resource and a scenic value here, and its plan calls for special management. BLM's records place 7 rights of way inside the line today. It covers 10,793 acres and was designated November 6, 2002, in the Las Vegas 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
7 rights of way sit inside the line. BLM files 5 under other energy facilities and 2 under non-energy facilities.
- NV POWER CO2rights of way
- HENDERSON, CITY OF (Nevada)1right of way
- SOUTHERN NV WATER AUTHORITY1right of way
- CLARK COUNTY (Nevada) - DEPARTMENT OF PUBLIC WORKS1right of way
- BOR LOWER CO. REGIONAL OFFICE1right of way
- HENDERSON CITY OF1right of way
The nearest areas
- Rainbow GardensNevada · 35,357 acres · at least 13 active mining claims, 19 rights of way9miles
- Arden Historic SitesNevada · 1,447 acres · 8 rights of way21miles
- Hidden ValleyNevada · 3,357 acres · nothing placed inside23miles
- Keyhole CanyonNevada · 240 acres · nothing placed inside24miles
- Coyote SpringsNevada · 51,550 acres · 19 rights of way32miles
More from BLM's Nevada office
Every area BLM's Nevada 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 River Mountains. 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