Anchorage businessman Robert Gillam, well known for his opposition to Pebble Mine, died Wednesday night following complications related to a stroke, leaving a legacy underscored by his business acumen and his steadfast opposition to Pebble Mine.

Wednesday afternoon, McKinley Capital Management's general counsel JL McCarrey, told KTVA Gillam was on life support and was surrounded by his family.

SalmonState Executive Director Tim Bristol said in a statement Wednesday night that he lost a good friend and it's a sad day for many Alaskans:

Bob Gillam was truly one of Alaska's greats. Not only was he a great businessman, he was the admiral who helped launch the armada of opposition to the ill-conceived Pebble Mine. Without his tenacity and resources, it's likely Bristol Bay's headwaters would be a giant hole in the ground. 

Over the years, I came to consider Bob a very good friend. I, along with so many other Alaskans, will miss him deeply. The Bristol Bay protection movement that Bob helped create has deepened, grown and diversified over the years and is now stronger than ever. This movement is his legacy and we carry on his honor.

Gillam, who is among the state's richest Alaskans and founder of McKinley Capital, has long opposed the controversial Bristol Bay project.

According to McKinley Capital's website, Gillam serves as the company's chairman and chief executive. He is responsible for the firm's overall corporate strategy and planning. He also provides oversight for all operational and investment management activities. 

Three years ago, Forbes identified Gillam as the state's richest resident with an estimated net worth of more than $300 million.

Two years ago, he expressed an interest in becoming President Donald Trump's Interior Secretary.

Gillam was 72 years old. 

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