NINE MILE CANYON, Idaho – Before his big break came, Jim Callahan spent 17 years searching for the mother lode. The Michigan native staked his claim in this narrow, forested canyon northeast of Wallace during the late 1880s. Working mostly by himself with a single jack drill, Callahan reached a zinc-rich deposit in 1906 that netted him $110,000 from ore sales – worth more than $2 million today.