Nevada · Area of Critical Environmental Concern
High Rock Canyon
BLM found a natural system, a wildlife resource, a cultural value, a scenic value and a historic value here, and its plan calls for special management. BLM's records place 2 rights of way inside the line today, and three grazing allotments cover part of it. It covers 5,665 acres and was designated August 6, 1982, in the Black Rock High Rock Emigrant Trail NCA RMP. In the plan's name, NCA stands for National Conservation Area and RMP 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 1 under non-energy facilities and 1 under none.
- Holder not listed by BLM1right of way
- BLM SURPRISE FIELD OFFICE1right of way
Grazing allotments
3 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Massacre Mountain149,051acres
- Nut Mountain71,333acres
- LEADVILLE57,111acres
The nearest areas
- Soldier MeadowsNevada · 2,078 acres · a grazing allotment covering part of it12miles
- BitnerCalifornia · 1,924 acres · 2 rights of way, a grazing allotment covering part of it24miles
- Massacre RimCalifornia · 48,423 acres · 6 grazing allotments covering part of it25miles
- Pine ForestNevada · 16,227 acres · 1 right of way, 3 grazing allotments covering part of it41miles
- Hawksie-WalksieOregon/Washington · 17,300 acres · a grazing allotment covering part of it46miles
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 High Rock Canyon. 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