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 towards permitting and development. The project proponent is Northern Dynasty’s Alaska-based, wholly owned subsidiary, the Pebble Partnership. For more information regarding the Pebble Partnership please visit www.pebblepartnership.com.

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 current resource estimate includes 6.5 billion tonnes in the measured and indicated categories and 4.5 billion tonnes in the inferred category, containing billions of pounds of copper and molybdenum, millions of ounces of gold and silver plus millions of kilograms of 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 with a commitment to design a project that is responsive to Alaskan input and needs, with a much smaller footprint than previously contemplated(1).  Information about that process and its current status are provided on Permitting

The Pebble Project’s tonnes, grade, metallurgy and geometry have the potential to support a modern, long-life mine, subject to permitting. This is supported by the results of an independent Preliminary Economic Assessment announced in 2023. Further details are provided on Economic Benefits.

(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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