Oregon · Area of Critical Environmental Concern
Kiger Mustang
BLM found a wildlife resource here, and its plan calls for special management. BLM's records place 2 rights of way inside the line today, and ten grazing allotments cover part of it. It covers 55,561 acres and was designated July 15, 2005, in the Steens Mountain Cooperative Management and Protection Area 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
2 rights of way sit inside the line. BLM files 2 under non-energy facilities.
- HARNEY COUNTY (Oregon)2rights of way
Grazing allotments
10 grazing allotments cover part of this line. Their permittees aren't named here yet.
- POLLOCK80,959acres
- BURNT FLAT34,520acres
- SMYTH-KIGER30,048acres
- RIDDLE MOUNTAIN24,787acres
- HAPPY VALLEY14,474acres
- CLEMENS FFR9,797acres
- EAST RIDGE8,552acres
- ROCKY FORD4,542acres
- JENKINS B FLAT FFR4,488acres
- RIDDLE FFR2,526acres
The nearest areas
- Diamond CratersOregon/Washington · 17,034 acres · 2 rights of way, 2 grazing allotments covering part of it17miles
- East Kiger PlateuOregon/Washington · 1,216 acres · 3 grazing allotments covering part of it18miles
- Fir GrovesOregon/Washington · 478 acres · 2 grazing allotments covering part of it20miles
- Mickey Hot SpringsOregon/Washington · 42 acres · a grazing allotment covering part of it23miles
- Little BlitzenOregon/Washington · 2,255 acres · nothing placed inside24miles
More from BLM's Oregon/Washington office
Every area BLM's Oregon/Washington 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 Kiger Mustang. 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