Alaska · Area of Critical Environmental Concern
Toolik Lake RNA
BLM found a natural system here, and its plan calls for special management. BLM's records place 30 rights of way inside the line today. It covers 78,027 acres and was designated January 1, 1991, in the Utility Corridor.
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
The rights of way
30 rights of way sit inside the line. BLM files 20 under non-energy facilities, 7 under oil & gas facilities, 1 under other, 1 under public purposes and 1 under none.
- *UNIVERSITY OF ALASKA - FAIRBANKS9rights of way
- Harvest Alaska, LLC5rights of way
- ALYESKA PIPELINE SERVICE CO2rights of way
- Holder not listed by BLM2rights of way
- FLORIDA INTERNATIONAL UNIV DEPT OF BIOLOGICAL SCIE1right of way
- UNIVERSITY OF TEXAS EL PASO-UTEP1right of way
- BATTELLE MEMORIAL INSTITUTE1right of way
- COLORADO STATE UNIVERSITY1right of way
- UTAH STATE UNIVERSITY1right of way
- UNIVERSITY OF MICHIGAN EARTH AND ENVIRONMENTAL SCIENCES 2534 CCL BLD1right of way
- NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION1right of way
- U S ARMY CORPS OF ENGINEERS COLD REGION RESEARCH AND ENGINEERING LABORATORY1right of way
- NATIONAL PARK SERVICE1right of way
- US ARMY ENGINEER RESEARCH1right of way
- UNVERSITY OF ALASKA1right of way
- University of Georgia1right of way
The nearest areas
- Galbraith Lake ACECAlaska · 53,949 acres · 17 rights of way8miles
- West Fork Atigun River ACECAlaska · 8,532 acres · nothing placed inside22miles
- Poss Mountain ACECAlaska · 8,732 acres · at least 3 active mining claims77miles
- Jim River ACECAlaska · 202,703 acres · at least 30 active mining claims, 1 right of way119miles
- Kanuti Hot Springs ACECAlaska · 43 acres · nothing placed inside158miles
Next to it
Galbraith Lake Area of Critical Environmental Concern touches the line.
More from BLM's Alaska office
Every area BLM's Alaska 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 Toolik Lake RNA. 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