Pebble Project

Project Overview

The Pebble Project is located in southwest Alaska. Northern Dynasty is 100% owner of the Pebble Partnership, which is advancing the world-class Pebble deposit in Alaska towards permitting and development.

The Pebble deposit is one of the greatest stores of mineral wealth ever discovered, and the world’s largest undeveloped copper and gold resource. The Pebble Project’s tonnes, grade, metallurgy and geometry have the potential to support a modern, long-life mine.

The current resource estimate includes 6.5 billion tonnes in the measured and indicated categories containing 57 billion lb copper, 71 million oz gold, 3.4 billion lb molybdenum, 345 million oz silver and 2.6 milllion kg rhenium; and 4.5 billion tonnes in the inferred category, containing 25 billion lb copper, 36 million oz gold, 2.2 billion lb molybdenum, 170 million oz silver and 1.6 million kg rhenium. Palladium also occurs in the deposit.

Pebble advanced the environmental science and engineering work necessary to enter the National Environmental Protection Act (NEPA) permitting process in late 2017. We are committed to designing a project that is responsive to Alaskan input and needs and, as such, we expect to enter permitting with a project that has a demonstrably smaller footprint than previously contemplated.

A presentation delivered on October 5, 2017 outlined the development considerations for the Pebble Project that will reduce the project’s footprint and significantly enhance environmental safeguards(1).

For more information regarding the Pebble Partnership please visit

(1) Northern Dynasty cautions that this may not be the ultimate development plan for the Project and remains subject to changes by Northern Dynasty (through the Pebble Partnership) and US Army Corps of Engineers (the "Corps of Engineers"). As part of the Environmental Impact Assessment preparation process, the Corps of Engineers will undertake a comprehensive alternatives assessment and consider a broad range of alternatives. 

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