Montana · Area of Critical Environmental Concern
Phil Wright Rock
BLM found a wildlife resource and a scenic value here, and its plan calls for special management. BLM's records place 3 rights of way inside the line today, and two grazing allotments cover part of it. It covers 638 acres and was designated February 2, 1994, in the Garnet RMP (1994). 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 other energy facilities.
- Holder not listed by BLM2rights of way
- NORTHWESTERN ENERGY1right of way
Grazing allotments
2 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Windlass Gulch2,076acres
- Allotment USFS-GRZ-10270.010349583acres
The nearest areas
- Rattler Gulch Limestone CliffsMontana/Dakotas · 19 acres · a grazing allotment covering part of it31miles
- Bear Creek FlatsMontana/Dakotas · 569 acres · 1 right of way45miles
- Humbug SpiresMontana/Dakotas · 8,374 acres · 2 rights of way, 5 grazing allotments covering part of it62miles
- Ringing RocksMontana/Dakotas · 161 acres · 4 grazing allotments covering part of it72miles
- Block MountainMontana/Dakotas · 8,631 acres · 1 right of way, 5 grazing allotments covering part of it80miles
More from BLM's Montana/Dakotas office
Every area BLM's Montana/Dakotas 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 Phil Wright Rock. 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