On October 24, 2025, Trilogy Metals announced that the Alaska Industrial Development and Export Authority (AIDEA) had executed the federal right‑of‑way permits for the Ambler Access Road, a 211‑mile industrial‑use‑only road linking the Upper Kobuk Mineral Projects to the Dalton Highway. The permits were issued by the U.S. Army Corps of Engineers, the National Park Service and the Bureau of Land Management, restoring the 50‑year right‑of‑way originally granted in 2020.
The execution of the permits follows the October 6 presidential decision under Section 1106 of the Alaska National Interest Lands Conservation Act, which directed federal agencies to re‑issue authorizations for the road. With the permits in place, AIDEA will proceed with detailed engineering, budgeting and planning for the next year, positioning the project to begin construction and ultimately provide critical access to Alaska’s richest copper‑dominant polymetallic deposits.
The Ambler Access Road is a key infrastructure component for Trilogy’s Upper Kobuk Mineral Projects, which host world‑class copper, zinc, lead, gold, silver and cobalt deposits. By securing the right‑of‑way, Trilogy removes a major regulatory hurdle, accelerating the company’s path to development and reinforcing its role in supplying domestic critical metals for national defense, energy infrastructure and the growing AI data‑center market.
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