California · Area of Critical Environmental Concern
Big Rock Creek Wash
BLM found a natural system, a wildlife resource and a natural process here, and its plan calls for special management. Nothing that BLM's records place sits inside the line today. It covers 309 acres and was designated September 14, 2016, in the CDCA Plan, as amended by DRECP. In the plan's name, CDCA stands for California Desert Conservation Area and DRECP for Desert Renewable Energy Conservation 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.Inside the line
Nothing sits inside this line that BLM's records place: no mining claim, lease, right of way or grazing allotment.
The nearest areas
- Mojave Fishhook CactusCalifornia · 637 acres · 5 rights of way, a grazing allotment covering part of it34miles
- Brisbane Valley Monkey FlowerCalifornia · 17,981 acres · at least 38 active mining claims and 6 more BLM lists as Filed, 1 right of way, a grazing allotment covering part of it34miles
- Juniper FlatsCalifornia · 2,387 acres · a grazing allotment covering part of it40miles
- Barstow Woolly SunflowerCalifornia · 36,344 acres · at least 3 mining claims BLM lists as Submitted43miles
- Granite Mountain CorridorCalifornia · 60,175 acres · at least 21 active mining claims and 3 more BLM lists as Filed or Under Review, 17 rights of way, 2 grazing allotments covering part of it44miles
More from BLM's California office
Every area BLM's California 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 Big Rock Creek Wash. 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