The mountain range Constantine is exploring as part of the Palmer Project. (Constantine Metal Resources)

The mountain range Constantine is exploring as part of the Palmer Project. (Constantine Metal Resources)

The Chilkat Indian Village of Klukwan and environmental groups lost their legal fight against hardrock mine development in the Chilkat Valley in a federal appeals court on Friday.

The San Francisco based 9th Circuit Court of Appeals upheld last year’s federal court ruling: the Bureau of Land Management does not have to consider the impacts of a fully fledged mine when considering permits for mineral exploration.

Chilkat Indian Village of Klukwan officials were unavailable for comment.

“We’re going to continue fighting this mine,” said Chris Zimmer, the Alaska Campaign Director with Rivers Without Borders, another plaintiff in the case. He called the ruling a disappointment.

“This court decision doesn’t change the concerns everybody’s put on the table about the potential effects on water quality and fisheries from the mine. Those are all still out there, are still valid. This court decision did nothing to address them,” he said.

Constantine Metal Resources is in the advanced stages of exploration for a copper-zinc-silver-gold mine. Surrounding residents are divided between the promise of local jobs and the concern that mine waste and runoff could pollute the Chilkat River, a major salmon source for the region.

Constantine’s communications consultant Liz Cornejo said in written comments that the company is pleased with the court’s decision and “remains committed to quality science and meaningful engagement with Chilkat Indian Village of Klukwan and other stakeholders.”