Utah · Area of Critical Environmental Concern
Lower Virgin River
BLM's map records no relevance finding for this one. BLM's records place no claim, lease or right of way inside the line today, and three grazing allotments cover part of it. It covers 1,806 acres and was designated March 1, 1999, in the St George 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
Ground: USGS The National Map, topographic tiles. Boundaries: BLM's own, read Oct 20, 2026. The 3 grazing allotments below aren't marked.Grazing allotments
3 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Curly Hollow28,055acres
- Lambing-Starvation13,417acres
- Little Brush Creek7acres
The nearest areas
- StatelineUtah · 1,410 acres · 3 rights of way, 2 grazing allotments covering part of it1miles
- Black KnollsArizona · 428 acres · at least 1 active mining claim, 1 right of way, 2 grazing allotments covering part of it2miles
- Webb HillUtah · 520 acres · 8 rights of way4miles
- Red BluffUtah · 6,166 acres · 1 right of way, 3 grazing allotments covering part of it5miles
- South HillsUtah · 1,994 acres · 1 right of way, 3 grazing allotments covering part of it7miles
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 Lower Virgin River. 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