Trilogy Metals Upper Kobuk
RSSThe Upper Kobuk Mineral Projects (UKMP) in Alaska are the Arctic and Bornite mineral deposits in the Ambler Mining District. The Arctic deposit holds copper, zinc, lead, silver and gold, and the Bornite deposit holds copper, with development tied to the Ambler Road federal permitting process.
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Arctic mine developer wraps summer drilling, says its focus is shifting toward building
Ambler Metals finished its summer drilling at the proposed Arctic copper mine in Northwest Alaska, drilling 42 holes concentrated where the mine's waste rock and tailings would go, co-owner Trilogy Metals said Oct. 21. The company says the work gives its engineers the geotechnical and groundwater data they need to finalize the mine's design.
"As the Arctic Project advances through permitting, our focus is shifting from defining the project to preparing to build it," Ambler Metals President Ron Rimelman said in Trilogy's announcement, which also named a new senior vice president to lead engineering and development of the mine.
The roughly 5,200 meters of drilling targeted the planned waste rock storage areas, the tailings footprint and groundwater, and was meant to shape where the mine's infrastructure goes and to support its permit applications, the company said.
Arctic would be an open-pit mine 22 miles from Kobuk. It depends on the proposed 211-mile Ambler Road, which hasn't been built and whose state easement seven conservation groups have appealed in court. Tanana Chiefs Conference and affiliated tribes have opposed the road and mine, citing harm to fish, wildlife and subsistence.
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Latest
Week of Sep 21
Federal environmental review begins for the Arctic copper mine near Kobuk
The Army Corps is starting its environmental review of the Arctic copper mine near Kobuk, with a final decision targeted for September 2028.
by Walter AlaskaNews1mo ago2 min read
Week of Sep 14
The federal stake in Trilogy Metals closes, terms made public
The federal government now owns about a tenth of Trilogy Metals, developer of Alaska's Ambler district, and the terms of the $35.6 million deal are now public.
by Walter AlaskaNews1mo ago2 min readFrom 
Week of Aug 31
Washington bought into Ambler. The payoff depends on the road being built
The federal government will own about 10 percent of Trilogy Metals, but cannot cash in most of its stake until the Ambler road is built.
by Walter AlaskaNews2mo ago4 min readFrom 
Week of Aug 17
Ambler district copper mine nears its first public comment period
A copper mine proposed 22 miles from Kobuk is moving through federal permitting. Residents could get their first chance to comment as soon as September.
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The fate of the EPA veto blocking Pebble Mine is now in a federal judge's hands
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About Trilogy Metals Upper Kobuk
The Upper Kobuk Mineral Projects in Alaska are two mineral deposits in the Ambler Mining District of the Northwest Arctic Borough, developed by Trilogy Metals. The Arctic deposit holds copper, zinc, lead, silver and gold, and the Bornite deposit holds copper.
The proposed Arctic copper mine near Kobuk is the more advanced of the two, with Ambler Metals carrying out summer drilling and seeking federal approval to build. Questions recur about its environmental review by the Army Corps of Engineers, about public comment from nearby residents, and about federal investment in Trilogy Metals.
Development of both deposits depends on the Ambler Road, the proposed industrial access road across the Brooks Range, and the value of the federal stake in Trilogy Metals is tied to that road being built.