Image credit: Facebook/Christine Boyle
New Prosperity Mine Project

Tsilhqot’in Nation, Taseko and province strike consent-based agreement on mining activity at New Prosperity site

Jun 6, 2025 | 11:02 AM

WILLIAMS LAKE, B.C. — A gesture of goodwill was made between the Tsilhqot’in Nation and Taseko Mines after more than a decade of conflict regarding a proposed mine site.

In a news release issued Thursday (June 5), Tsilhqot’in states it has reached an agreement with Taseko and the B.C. government that any mining activity in the Teztan Biny (Fish Lake) area requires the consent of the First Nation.

“For over three decades, we’ve had conflict in the Teẑtan area,” Nits’ilʔin (Chief) Roger William stated. “Now we are turning the page. Tŝilhqot’in consent is protected: there is no longer the threat of exploration or mining without our consent. I hold my hands up to everyone that worked hard over the past five years to achieve this historic agreement that reflects true reconciliation, including the province and [Taseko]. This is a time to celebrate for our people and honour all those who made this resolution possible.”

In 2014, the federal Ministry of Environment rejected Taseko’s proposed New Prosperity mine project, an open pit gold and copper mine, after a review panel of experts determined the mine would have significant negative impacts on water quality, fisheries and Tsilhqot’in heritage.

Taseko continued to appeal against the decision regarding the proposed New Prosperity mine in the Chilcotin south of Alexis Creek, seeing those appeals dismissed by the Federal Court in 2017 and the Federal Court of Appeal in 2019.

In 2017, the province authorized Taseko to carry out a geotechnical investigation at the Fish Lake site. However, Tsilhqot’in obtained a court injunction in 2019 to halt the site investigation.

The final act came in 2020 when the Supreme Court of Canada dismissed Taseko’s appeal of the 2014 rejection.

As part of the agreement, Taseko President and CEO Stuart McDonald says the mining company will keep a majority interest – 77.5 per cent – in New Prosperity mineral tenures, while 22.5 per cent will be placed in a trust for Tsilhqot’in, if it decides to pursue mineral development in the Fish Lake area.

In a separate news release issued Thursday, the province says it will make a one-time payment of $75 million to Taseko. It adds that Taseko will not be the operator of any future mineral exploration or development activity in the Fish Lake area.