From Rejected Claims to Mining Legend: Murray Pezim, Don MacKinnon & the Vancouver-Financed Hemlo Boom

In the late 1970s and early 1980s, Toronto turned its back on a prospect near the Trans-Canada Highway. Vancouver didn't. Through persistence, bold geology, and VSE financing, Don MacKinnon, John Larch, David Bell, and Murray Pezim created the Hemlo Gold Camp a landmark moment for junior mining exploration in Canada.

The Hemlo Discovery: Persistence Meets Vancouver Capital

In the early 1980s, while much of the Canadian mining establishment dismissed the area, a small group of determined Canadians rewrote the country’s gold mining history at Hemlo, near the north shore of Lake Superior. The story begins with Don MacKinnon, a relentless prospector convinced a major gold deposit lay hidden near Hemlo. For 15 years he researched old records, studied satellite imagery, and staked claims — often alone in harsh conditions.

“I’ve been in this business for so many years… there’s times that I’ve taken our last cent… and pounded doors here in Toronto until you almost give up.” — Don MacKinnon

MacKinnon partnered with fellow prospector John Larch. Together they staked thousands of claims starting in 1979. Their findings aligned with a bold new geological theory from David Bell, a Timmins-based geologist who believed gold had formed through ancient hot-spring activity on the flanks of ancient volcanoes. But theory alone doesn’t pay for drilling. Toronto financing doors stayed mostly closed. Metal prices were weak, and too many companies had previously explored Hemlo and walked away empty-handed.

Enter Vancouver and Murray Pezim

That’s when the story shifted west to Vancouver — the undisputed risk capital hub for junior mining exploration in Canada at the time. Murray Pezim, one of the most flamboyant and effective stock promoters in North America, stepped in. Pezim had a reputation for backing high-risk, high-reward deals when others wouldn’t.

“If anyone could raise the millions needed, he could.” — Documentary narration on Pezim

Pezim backed MacKinnon and Larch through a shell company called International Corona. The property was advanced despite skepticism from eastern Canada. Pezim’s ability to mobilize Vancouver brokers and investors provided the critical venture capital that kept the project alive through dozens of dry holes. Peter Brown, then Chairman of the Vancouver Stock Exchange, later reflected on the atmosphere:

“It was right in a heavily explored area of Ontario yet every major [company] saying ‘we’ve worked there before and there’s nothing there.’ This is crazy… We were flying in the face of existing geological thought.” — Peter Brown

The VSE’s flexible regulatory environment and appetite for speculative junior mining deals made the financing possible. Vancouver had become the go-to venue for exactly this kind of high-risk exploration capital after Toronto tightened rules following earlier scandals.

The Breakthrough and the Boom

Drilling continued despite heavy criticism. On the 76th hole, they finally hit the main orebody. The gamble paid off spectacularly. Corona and associated companies (Goliath, Golden Scepter) exploded on the Vancouver Stock Exchange. Stocks doubled almost overnight. The Hemlo discovery triggered a classic junior mining boom, with investors rushing in from across Canada. By the mid-1980s, Hemlo would prove to contain over 100 million tonnes of ore and tens of millions of ounces of gold — the largest single gold find in North America at the time. Noranda eventually developed major operations, pouring first gold in record time. The camp transformed the local economy and demonstrated the power of junior exploration backed by Vancouver venture capital.

Why Vancouver Mattered: Risk Capital for Early-Stage Mining

The Hemlo story perfectly illustrates the unique role of the Vancouver Stock Exchange in the 1970s–1980s. While Toronto became more conservative after scandals like Windfall, Vancouver embraced high-risk junior mining deals with lighter regulation tailored to exploration-stage companies. Promoters like Murray Pezim, combined with brokers and investors comfortable with extreme volatility, provided the “risk capital” that majors and conservative eastern financiers would not touch. Without that ecosystem, Hemlo might have remained undiscovered for decades.

Key quotes that capture the spirit:

• Murray Pezim (on persistence): He kept funding the project when others lost faith.

• Don MacKinnon (on Toronto rejection): “They just couldn’t face it… sitting in their little throne in Toronto here and tell me that the potential was too small.”

Legacy for Canadian Junior Mining

Hemlo remains a legendary case study in Canadian mining finance. It showed that:

• Stubborn prospecting + visionary geology can overcome establishment skepticism.

• Vancouver’s venture capital model was essential for early-stage exploration.

• One major discovery can revitalize an entire exchange and create thousands of jobs.

Even today, the story resonates for investors in junior mining stocks on the TSX-V and CSE. Success still requires the same ingredients: persistent teams, bold ideas, and access to risk capital willing to drill through uncertainty. The Hemlo Gold documentary stands as a timeless reminder that Canada’s greatest mineral discoveries often come from the bush, not the boardroom — and are frequently financed where the risk appetite is highest: Vancouver.