Question: Which was in operation longer the Burwash Mine or the Hedley Mascot Mine?
Sentence (from "Burwash Mine"): A short shaft was sunk in 1935-1936 at Burwash, and in the summer of 1935 a 16-ton bulk sample of ore was shipped to Trail, British Columbia for processing, yielding 200 troy ounces (6 kg) of gold.
Relevant evidence: Yes