Alex McDonald (prospector) Alex McDonald (prospector) Alexander "Big Alex" McDonald (1859–1909) was a Canadian gold prospector who made (and lost) a fortune in the Klondike Gold Rush, earning himself the title "King of the Klondike". The son of Scottish immigrants, McDonald was born in Antigonish, Nova Scotia. He was an unsuccessful prospector, having tried his luck in the Colorado gold fields, before heading to the gold rush in Juneau, Alaska, in the late 1880s. In 1895 or 1896, he was in the Yukon, employed by the Alaska Commercial Company at Forty-Mile to buy mining properties. Gold was discovered in the region in 1897.
Juneau mining district Inlet to Holkam Bay. French Canadian prospector Pierre Erussard, known as "French Pete," found gold on Douglas Island, across Gastineau Channel from Juneau. A consortium led by John Treadwell, a carpenter from California, purchased the claims and adjoining gold-bearing land. The resulting mine/mill complex produced more than 3 million troy ounces (93 tonnes) of gold before closing in 1922. The underground Kensington hardrock mine is approximately north of Juneau. The mine site is within the City and Borough of Juneau and the Tongass National Forest. Development and ore production occurred at the Kensington mine site from 1897 through 1938. The