California · Area of Critical Environmental Concern
Cache Creek Corridor
BLM found a wildlife resource, a cultural value and a historic value here, and its plan calls for special management. Nothing that BLM's records place sits inside the line today. It covers 19,764 acres and was designated September 25, 2006, in the Ukiah.
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
- KnoxvilleCalifornia · 4,263 acres · 5 rights of way, a grazing allotment covering part of it8miles
- Walker RidgeCalifornia · 3,433 acres · 2 rights of way14miles
- Indian ValleyCalifornia · 101 acres · nothing placed inside18miles
- Black ForestCalifornia · 254 acres · nothing placed inside19miles
- Cedar RoughsCalifornia · 6,379 acres · a grazing allotment covering part of it25miles
Next to it
Northern California Chapparral Area of Critical Environmental Concern touches 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 Cache Creek Corridor. 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