California · Area of Critical Environmental Concern
Old Woman Springs Wildlife Linkage
BLM found a natural system, a wildlife resource and a natural process here, and its plan calls for special management. BLM's records place at least 5 active mining claims (and 176 more BLM lists as Filed or Under Review) and 9 rights of way inside the line today, and three grazing allotments cover part of it. It covers 61,171 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
Who holds the claims
At least 181 claims sit inside this line: 5 active and 176 filed and pending, 150 with a holder BLM names and 31 with a claimant BLM withholds under the Privacy Act. BLM lists 175 as Filed, 5 as Active and 1 as Under Review.
- PUMA GOLD LLC133claims
- Names withheld by BLM (private individuals)31claims
- KAPA GOLD LIMITED USA INC.12claims
- KAPA GOLD LIMITED USA INC3claims
- FIRST CLASS MINERS INC2claims
BLM's mining rules list designated ACECs among the places where mining that disturbs the surface beyond casual use needs a plan of operations BLM approves. Exploration of five acres or less can go ahead on a notice instead.
The rights of way
9 rights of way sit inside the line. BLM files 4 under non-energy facilities, 3 under other energy facilities, 1 under other and 1 under 44 ld 513.
- SOUTHERN CALIFORNIA EDISON CO3rights of way
- Holder not listed by BLM2rights of way
- FRONTIER CALIFORNIA INC1right of way
- PROTOMOTION LLC1right of way
- MOJAVE WATER AGENCY1right of way
- FRONTIER CALIFORNIA INC.1right of way
Grazing allotments
3 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Rattlesnake Canyon29,360acres
- Allotment USFS-GRZ-10043.0103381,392acres
- Rattlesnake Unit926acres
The nearest areas
- Soggy Dry Lake Creosote RingsCalifornia · 186 acres · nothing placed inside8miles
- Carbonate Endemic Plants RNACalifornia · 6,395 acres · at least 25 active mining claims and 132 more BLM lists as Filed, 2 rights of way, a grazing allotment covering part of it11miles
- Pipes CanyonCalifornia · 59,830 acres · 17 rights of way12miles
- Upper Johnson Valley Yucca RingsCalifornia · 329 acres · nothing placed inside16miles
- Big Morongo CanyonCalifornia · 28,275 acres · 14 rights of way19miles
Next to it
Pipes Canyon Area of Critical Environmental Concern and Carbonate Endemic Plants Research Natural Area of Critical Environmental Concern touch the line.
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 Old Woman Springs Wildlife Linkage. 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