https://www.abebooks.com/9781550173949/Hills-Silver-Yukons-Mighty-Keno-1550173944/plp
Hills of Silver: The Yukon's Mighty Keno Hill Mine - Aho, Dr. Aaro E.: 9781550173949 - AbeBooks
The Yukon is famous for its Klondike gold rush, but it was the site of another major mineral discovery in 1918 that touched off its own stampede of sourdoughs...