Wyoming · Area of Critical Environmental Concern
Cave Creek Cave ACEC
BLM found a natural system, a wildlife resource, a cultural value, a scenic value, a natural process, a historic value and a fish resource here, and its plan calls for special management. BLM's records place no claim, lease or right of way inside the line today, and a grazing allotment covers part of it. It covers 240 acres and was designated December 24, 2008, in the Rawlins 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
Ground: USGS The National Map, topographic tiles. Boundaries: BLM's own, read Oct 20, 2026. The grazing allotment below isn't marked.Grazing allotments
A grazing allotment covers part of this line. Its permittee isn't named here yet.
- SULLIVAN206,256acres
The nearest areas
- Alcova Fossil Area ACECWyoming · 5,977 acres · 3 rights of way, 3 grazing allotments covering part of it23miles
- Blowout Penstemon ACECWyoming · 29,151 acres · at least 96 mining claims BLM lists as Filed, 1 oil and gas lease, 4 rights of way, 7 grazing allotments covering part of it25miles
- Jackson Canyon ACECWyoming · 14,348 acres · 1 right of way, 3 grazing allotments covering part of it37miles
- Green Mountain ACECWyoming · 24,924 acres · at least 571 active mining claims and 80 more BLM lists as Filed, 18 oil and gas leases, 2 rights of way, 6 grazing allotments covering part of it57miles
- Sand Hills/JO Ranch ACECWyoming · 11,977 acres · 6 oil and gas leases, 4 grazing allotments covering part of it75miles
More from BLM's Wyoming office
Every area BLM's Wyoming 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 Cave Creek Cave ACEC. 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