California · Area of Critical Environmental Concern
Deadmans Flat
BLM found a natural system and a natural process here, and its plan calls for special management. BLM's records place at least 1 active mining claim and 3 rights of way inside the line today. It covers 745 acres and was designated February 1, 2008, in the Sierra.
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 1 claim sits inside this line: 1 active, 1 with a claimant BLM withholds under the Privacy Act. BLM lists 1 as Active. The claim wasn't located before the area was designated.
- Names withheld by BLM (private individuals)1claim
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
3 rights of way sit inside the line. BLM files 1 under other energy facilities, 1 under oil & gas facilities and 1 under non-energy facilities.
- AT&T CALIFORNIA2rights of way
- PG&E1right of way
The nearest areas
- Dutch Flat/Indian Hill RNACalifornia · 317 acres · 2 rights of way14miles
- North Table MountainCalifornia · 53 acres · nothing placed inside33miles
- Pine HillCalifornia · 3,277 acres · at least 3 active mining claims, 1 right of way35miles
- Spivey PondCalifornia · 54 acres · nothing placed inside43miles
- North Fork Cosumnes RiverCalifornia · 1,136 acres · at least 1 active mining claim, 1 right of way45miles
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 Deadmans Flat. 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